Chapter II: Part 2

Chinaja, 3; 15 km. NW of Chinaja, 1; 20 km. NNW of Chinaja, 2.

Individuals of this turtle were found on the forest floor and in small sluggish streams. In life most specimens had a tan or pale brown head with pinkish tan stripes on the head and neck. All individuals were obtained in February and March. No ecological differences between this species and _K. acutum_ were evident.

=Staurotypus triporcatus= (Wiegmann)

Paso Subin, 1.

This species is represented in the collection by one complete shell found on the bank of the Rio Subin. The carapace has a length of 292 mm. The local name is _Guao_. Natives stated that this turtle was not uncommon in clear rivers and lakes, a habitat suggested for the species by Stuart (1958:19).

=Dermatemys mawi= Gray

Chinaja, 1; Rio San Roman, 4.

The record from Chinaja is based on a carapace found in a chiclero camp, where the turtle evidently had been brought for food. The four specimens from the Rio San Roman were obtained from edges of deep pools in clear water. In adult males the top of the head was reddish orange in life. One of the specimens from the Rio San Roman currently is living in the Philadelphia Zoological Gardens. The local name for this turtle is _tortuga blanca_; it is sought for its meat.

=Geoemyda areolata= (Dumeril and Bibron)

Chinaja, 2.

Two specimens were obtained from dense forest at Chinaja. The local name is _mojina_.

=Pseudemys scripta ornata= (Gray)

Paso Subin, 1.

One subadult was obtained from clear water in the Rio Subin. The stripes on the head and neck were yellow; there was no red "ear" on the side of the head. The stripes on the forelimbs were orange, and the ocelli on the carapace were red. The local name is _jicotea_.

=Coleonyx elegans elegans= Gray

Toocog, 1.

One adult male having a snout-vent length of 89 mm. was found beneath a log in the forest. Locally this gecko is known as _escorpion_; the natives believe it to be deadly poisonous. The use of the name _escorpion_ seems to be restricted to lizards thought to be venomous. Nearly everywhere in Mexico and Central America some species of lizard carries this appellation. In El Peten I heard the name used only for _Coleonyx elegans_ and _Thecadactylus rapicaudus_; in the lowlands of Guerrero, Mexico, the name is applied to geckos of the genus _Phyllodactylus_. The venomous lizards of the genus _Heloderma_ in the lowlands of western Mexico are called _escorpiones_. In the mountains of southern Mexico various skinks of the genus _Eumeces_, as well as lizards of the genus _Xenosaurus_, carry the same appellation. _Abronia_ in the mountains of Mexico and _Gerrhonontus_ throughout Mexico and Central America likewise are called _escorpiones_. Although many people in various parts of Middle America consider most lizards poisonous, there is a unanimity of opinion concerning the venomous qualities of the various kinds of _escorpiones_. I know of only two other lizards in Middle America that are so uniformly regarded in native beliefs; these are _Enyaliosaurus clarki_ in the Tepalcatepec Valley in Michoacan, called _nopiche_, and _Phrynosoma asio_ in western Mexico, called _cameleon_.

=Sphaerodactylus lineolatus= Lichtenstein

15 km. NW of Chinaja, 1; Toocog, 1.

These small geckos were much more abundant than the few specimens indicate. They frequently were seen on the trunks of corozo palms, where they quickly took refuge in crevices at the bases of the fronds. The specimen obtained at Toocog was under the bark of a standing dead tree. In life the ventral surface of the tail was orange. The individual from Chinaja was in the leaf litter on the ground at the base of a dead tree.

=Thecadactylus rapicaudus= (Houttuyn)

15 km. NW of Chinaja, 1; 20 km. NNW of Chinaja, 2.

Two specimens were found beneath the bark of standing dead trees; another was found in the crack in the trunk of a mahogany tree about 13 meters above the ground. In life the dorsum was yellowish tan with dark brown markings; the venter was yellowish tan with brown flecks, and the iris was olive-tan. The largest specimen is a male having a snout-vent length of 95 mm.; all specimens have regenerated tails. Individuals when caught twisted their bodies and attempted to bite; upon grabbing a finger they held on with great tenacity.

=Anolis biporcatus= (Wiegmann)

14 km. NNW of Chinaja, 1; 17 km. NNW of Chinaja, 1; 20 km. NNW
of Chinaja, 3; 30 km. NNW of Chinaja, 1; Sayaxche, 1.

All specimens of this large anole were obtained from trees. Some individuals were found in the tops of trees immediately after they were felled. My limited observations on this anole suggest that it is an inhabitant of the upper levels of the forest. In life an adult male from 20 kilometers north-northwest of Chinaja was brilliant green above; the eyelids were bright yellow; the belly was white. The outer part of the dewlap was pale orange, and the median part was pinkish blue. A juvenile having a snout-vent length of 47 mm. and a tail length of 86 mm. was pale grayish green with pale gray flecks on the dorsum. The largest male has a snout-vent length of 98 mm. and a tail length of 217 mm.; the same measurements of the largest female are 89 and 213 mm. This species, together with all other anoles, is known locally as _toloque_.

=Anolis capito= Peters

Chinaja, 2; 14 km. NNW of Chinaja, 1; Rio de la Pasion, 1.

All individuals were observed on trunks of trees between heights of three and ten meters above the ground. The largest male has a snout-vent length of 81 mm. and a tail length of 155 mm.; the same measurements of the largest female are 87 and 150 mm. The streaked brown dorsum, combined with the lizards' habit of pressing the body against the trunks of trees, make this anole especially difficult to see.

=Anolis humilis uniformis= Cope

Chinaja, 24; 15 km. NW of Chinaja, 22; 20 km. NNW of Chinaja,
6; Sayaxche, 1.

This small dull brown anole is a characteristic inhabitant of the forest floor, where the lizards move about in a series of quick, short hops and thus easily evade capture. Three individuals were found on small bushes, and four were on the bases of trees; otherwise, all were observed on the ground. Observations indicate that this species is active throughout the day, except during and immediately after heavy rains. The males have a deep red dewlap with a dark blue median spot.

=Anolis lemurinus bourgeaei= Bocourt

Chinaja, 11; 20 km. NNW of Chinaja, 4; 30 km. NNW of Chinaja,
2; Rio de la Pasion, 1; Rio San Roman, 1; Sayaxche, 8; Toocog,
6.

This moderate-sized anole characteristically inhabits the low bushes and bases of trees in the forest. Individuals were most readily observed on the buttresses of some of the gigantic mahogany and ceiba trees. When approached the lizards usually ran around the tree or ducked to the other side of the buttress; if the observer moved closer, they jumped to the ground and ran off. None was observed to ascend large trees. Some individuals were observed foraging on the forest floor; these took shelter on the bases of trees. One individual was sleeping on a palm frond at night. The adult males have a uniformly orange-red dewlap.

=Anolis limifrons rodriguezi= Bocourt

15 km. NW of Chinaja, 2; 20 km. NNW of Chinaja, 1.

In dry forests and more open situations than occur at Chinaja this little anole is abundant, but in the wet forests of southern El Peten, only three specimens were found. Two were on palm fronds about two meters above the ground; the other was on a low bush. I suspect that ecologically this species overlaps _A. humilis uniformis_ and _A. lemurinus bourgeaei_, but too few observations are recorded to justify a definite statement at this time.

=Anolis sericeus sericeus= Hallowell

Chinaja, 2; Sayaxche, 1; Toocog, 1.

This small anole is common and widespread in the Atlantic lowlands of southern Mexico and northern Central America; usually it inhabits sub-humid regions. Consequently, its presence in the wet forests of southern El Peten was unexpected. The specimens from Chinaja were sleeping on low bushes at night, whereas the others were found on bushes by day.

=Basiliscus vittatus= Wiegmann

Chinaja, 6; Rio de la Pasion, 1; Rio San Roman, 1; Sayaxche,
3; Toocog, 1.

Individuals of this abundant species were most frequently seen in dense bushes along the margins of rivers or small streams. None was observed far from water. These lizards, like the anoles, are known locally as _toloque_.

=Corythophanes cristatus= (Merrem)

Chinaja, 3; 20 km. NNW of Chinaja, 1.

Three individuals were found on tree trunks; the fourth was on a thick vine about one meter above the ground. The two largest males have snout-vent lengths of 121 and 115 mm. and tail lengths of 265 and 243 mm. The largest female (KU 59603), obtained on June 28, has a snout-vent length of 125 mm. and a tail length of 247 mm. This individual contained eight ova varying in greatest diameter from 10.6 to 12.2 (average 11.1) mm. Also present are numerous ovarian eggs having diameters up to about 3.5 mm.

One of the large males displayed a defensive behavior prior to capture. When first observed the lizard was clinging to a tree trunk about one and one-half meters above the ground. When I approached, the lizard turned its flanks towards me; then it flattened the body laterally, extended the dewlap, opened its mouth, and made short rushing motions. When touched it bit viciously. On the ground these lizards have a rather awkward bipedal gait that is much slower than in _Basiliscus vittatus_.

In life an adult male (KU 55804) was reddish brown dorsally with dark chocolate brown markings; the venter was creamy white, and the iris was dark red. The natives call this lizard _piende jente_.

=Iguana iguana rhinolopha= Wiegmann

Rio San Roman, 2.

The _iguana_, as this lizard is called locally, seems to be uncommon in the forested areas of southern El Peten. Possibly this is due to the fact that the flesh of this lizard is relished as food by the natives. My two specimens were in large trees at the edge of the river.

=Laemanctus deborrei= Boulenger

Chinaja, 1; Toocog, 5.

On June 26 a female having a snout-vent length of 129 mm. and a tail length of 502 mm. was found on a bush in the forest. The lizard, when approached, faced the collector and opened its mouth. In life the dorsum was bright green; the lateral stripe was white, and the iris was yellowish brown. This specimen contained four ova having lengths of 13.4 to 14.2 (average 13.9) mm.

On June 30 at Toocog five white-shelled eggs were found in a rotting log. Measurements of the eggs are--length, 23.5 to 25.0 (average 24.2) mm.; width, 15.0 to 15.5 (average 15.4) mm. These eggs hatched on August 30. The five young had snout-vent lengths of 43 to 45 (average 44) mm., and tail lengths of 137 to 140 (average 138) mm. In life the hatchlings had a dull dark green dorsum, pale bright green venter and stripes on head, and reddish brown iris. In preservative the hatchlings are creamy tan above with five or six square dark brown blotches middorsally.

The natives consider this lizard to be one of the anoles; consequently, it is known as _toloque_.

=Lepidophyma flavimaculatum flavimaculatum= Dumeril

Chinaja, 8; 15 km. NW of Chinaja, 2.

Individuals were found beneath logs on the forest floor or moving about in the litter on the forest floor. One was observed crawling across a trail during a heavy rain. In some adults the tan dorsal spots are large and distinct; in others the spots are small and indistinct. Two juveniles, apparently recent hatchlings, were found on June 28 and July 5. These specimens have snout-vent lengths of 29 mm. and tail lengths of 38 and 41 mm.

=Eumeces schwartzei= Fischer

Chinaja, 1.

One specimen (KU 59551) was found on the forest floor at midday; it is an adult female having a snout-vent length of 125 mm. and a tail length of 210 mm. This specimen is larger than those recorded by Taylor (1936:99) and extends the known range of the species south of Ramate, approximately 125 kilometers south-south-westward to Chinaja.

=Eumeces sumichrasti= (Cope)

20 km. NNW of Chinaja, 1.

One adult male having a snout-vent length of 82 mm. was found beneath a palm frond on the forest floor. In life the dorsum was dull brown; the chin was cream; the belly was yellow, and the underside of the tail was orange. A juvenile having a black body, yellow dorsal stripes, and a bright blue tail was observed on the forest floor.

=Scincella cherriei cherriei= (Cope)

Chinaja, 2; 30 km. NNW of Chinaja, 1; Toocog, 1.

All individuals of this lizard were found in the leaf litter on the forest floor; many escaped capture. In life the tail is dull bluish gray. The number of dorsal scales varies from 59 to 61 (average 60); thus, these specimens fall within the range of variation of _S. cherriei cherriei_, and thereby differ from _S. cherriei stuarti_ to the west and _S. cherriei ixbaac_ to the north.

=Ameiva festiva edwardsi= Bocourt

Chinaja, 16; 15 km. NW of Chinaja, 10; Sayache, 4; Toocog, 1.

This abundant terrestrial lizard, locally called _lagartijo_, is found throughout the forest. A juvenile obtained on March 14 at Sayaxche has a snout-vent length of 42 mm. and a prominent umbilical scar. Other juveniles were observed at Chinaja in February and March, thereby indicating that the young probably hatch in the early part of the year. Juveniles have bright blue tails.

=Celestus rozellae= Smith

20 km. NNW of Chinaja, 2.

Two specimens were obtained from trees by workmen in February. These lizards have snout-vent lengths of 70 and 83 mm. and tail lengths of 133 and 135 mm. There are 21 and 23 lamellae beneath the fourth toe; each has 31 longitudinal rows of scales around the body.

=Boa constrictor imperator= Daudin

15 km. NW of Chinaja, 1; 20 km. NNW of Chinaja, 2; Toocog, 1.

All specimens were found on the forest floor. One individual was found in combat with a large _Drymarchon corais melanurus_. Apparently, the _Drymarchon_ was attempting to devour the _Boa_, which had a total length of 1683 mm. Locally this snake is called _masacuata_; it is one of the few snakes believed by the local inhabitants to be non-poisonous.

=Clelia clelia clelia= Daudin

15 km. NW of Chinaja, 1; 20 km. NNW of Chinaja, 1.

One specimen is represented only by the head; the snake was killed on the forest floor by workmen. Another individual was found in a pool of water at the base of a limestone outcropping in the forest; this specimen (KU 58167) is a female having a body length of 2220 mm. and a total length of 2634 mm. This snake contained 22 ova averaging 56 x 23 mm. Both specimens were uniform shiny black above and cream-color below. The local name is _sumbadora_.

=Coniophanes bipunctatus bipunctatus= (Guenther)

Chinaja, 1.

This snake was found on the forest floor by day; it is a male having 130 ventrals, an incomplete tail; cream-colored belly, and a pair of large brown spots on each ventral scute.

=Coniophanes fissidens fissidens= (Guenther)

Toocog, 1.

This male specimen was found beneath a rock in a sink hole. It has 122 ventrals and 77 caudals. A narrow temporal stripe extends along the upper edge of the anterior temporal and the lower edge of the upper secondary temporal. The belly is ashy white with a pair of small black spots on each ventral.

=Coniophanes imperialis clavatus= (Peters)

Chinaja, 3.

All specimens were found on the forest floor by day. These small snakes are capable of rapid movement and quickly disappear in the litter on the ground. Two individuals evaded capture. The belly is creamy white anteriorly and vermillion red posteriorly.

=Dryadophis melanolomus laevis= (Fischer)

Chinaja, 3.

These snakes, locally known as _sumbadora_, were found on the forest floor; two others were seen, but escaped. The variation in coloration has been a source of confusion in this species in northern Central America (see Stuart, 1941:86). All of the present specimens are males: KU 55709 has 178 ventrals, 121 caudals, and a total length of 914 mm.; the dorsum is olive-tan with six darker cross-bars on the neck; the belly is creamy white. KU 58160 has 188 ventrals, 123 caudals, and a total length of 1365 mm.; the dorsum is uniform olive-brown, except that some dorsal scales at midbody have black anterior borders like _D. melanolomus melanolomus_ has in the Yucatan Peninsula; the venter is pale yellow. KU 58158 has 179 ventrals, 122 caudals, and a total length of 723 mm.; the dorsum is rich chocolate brown with eight dark cross-bars on the neck; the belly is bright orange.

Stuart (1941a:87) stated that in life two distinct color phases were observed in specimens collected by him in Alta Verapaz, Guatemala. One had an olive-brown dorsum and the other, a reddish orange dorsum. Stuart made no mention of variation in the color of the venter. Similar variation is known in _D. melanolomus alternatus_ in Costa Rica, where some individuals have orange-red venters. This color phase has been recognized as a distinct species, _Dryadophis sanguiventris_, by Taylor (1954:722). Examination of 18 specimens from Costa Rica shows no differences in scutellation, nor geographic segregation of two populations. I am convinced that the red-bellied _Dryadophis_ in Costa Rica, like those in Guatemala, represent a color phase of the subspecies inhabiting those areas and that _Dryadophis sanguiventris_ Taylor is a synonym of _Dryadophis melanolomus alternatus_ (Bocourt).

=Drymarchon corais melanurus= (Dumeril, Bibron and Dumeril)

15 km. NW of Chinaja, 1; Sayaxche, 1.

The specimen from Sayaxche was found at the edge of a clearing in the forest; that from 15 kilometers northwest of Chinaja was found on the forest floor coiled with a _Boa constrictor imperator_, which the _Drymarchon_ apparently was trying to eat. The _Drymarchon_ is a giant specimen having a total length of 2950 mm. (see Duellman, 1961:368). The _Boa_ with which it was coiled has a total length of 1683 mm. I was attracted to the snakes by a loud thrashing noise. When I approached the writhing mass, the snakes separated, but I was able to see that the _Drymarchon_ had its teeth firmly imbedded in the posterior part of the head of the _Boa_. From the _Drymarchon_ I forced the regurgitation of a recently ingested _Bothrops nummifer nummifer_ having a total length of 953 mm. These observations show that the snake-eating capabilities of _Drymarchon_ can hardly be over-estimated.

In both _Drymarchon_ the anterior one-half of the body is olive-tan, which changes to bluish black posteriorly. The local name is _sumbadora_.

=Drymobius margaritiferus margaritiferus= (Schlegel)

Chinaja, 3; Sayaxche, 1.

All individuals were obtained in clearings in the forest by day in the rainy season. Two individuals each contained a _Similisca baudini_ and another contained a _Bufo valliceps valliceps_. Locally this snake is known by the appropriate name of _ranera_.

=Imantodes cenchoa leucomelas= Cope

Chinaja, 4.

With the exception of one that was found dead in camp, all individuals were taken from low vegetation by day. The dorsum is creamy tan with 28 to 35 (average 32) chocolate brown blotches, and the venter is ashy white with small brown flecks. Three males have 238 to 248 (average 244) ventrals and 148 to 154 (average 151) caudals; one female has 239 ventrals and 142 caudals. The largest specimen, a male, has a body length of 660 mm. and a total length of 943 mm.

=Lampropeltis doliata polyzona= Cope

Chinaja, 1.

One female (KU 57156) having 230 ventrals and 54 caudals was found on the forest floor by day. This individual has a black snout with a white bar across the nasals and prefrontals, a white spot in the middle of the frontal, and a white band across the temporals and parietals that is bordered posteriorly by a black band. There are 28 white and 28 red rings on the body. The tips of the red scales are darkened. The black rings between the white and red rings are not so expanded as to interrupt the white rings dorsally as in _L. doliata abnorma_ as identified by Stuart (1948:70). Locally this snake, like all red, black, and white or yellow banded snakes, is called _coral_ or _coralillo_.

=Leptodeira frenata malleisi= Dunn and Stuart

Toocog, 1.

This specimen, a male having 173 ventrals and 69 caudals, was found beneath the bark on a log in the forest. In life the dorsum was pinkish tan with 36 chocolate brown blotches on the body; the venter was rosy pink.

=Leptodeira septentrionalis polysticta= Guenther

Chinaja, 3; Toocog, 11.

If numbers of specimens are indicative of abundance, this is the most common snake in southern El Peten. All were found at night in the rainy season. At a pond in the forest at Toocog these snakes were observed on low vegetation, on the ground, and in the water. Evidently they congregate at breeding choruses of frogs. One _Leptodeira_ contained a _Smilisca baudini_ and another contained eggs of _Phyllomedusa callidryas taylori_. The natives call this snake _nahuyaca_.

=Leptophis ahaetulla praestans= (Cope)

13 km. NNW of Chinaja, 1; 20 km. NNW of Chinaja, 1.

Both specimens were obtained from trees when they were felled. One individual (KU 55716) has a body length of 1345 mm. and a total length of 2035 mm. In life the entire snake was uniform bright green; the eye was yellow. In preservative the dorsum is dark blue, and the venter is green.

=Leptophis mexicanus mexicanus= Dumeril, Bibron and Dumeril

Chinaja, 1; 15 km. NW of Chinaja, 1; Sayaxche, 4.

All specimens came from low trees in the forest. The largest specimen is a male having a body length of 724 mm. and a total length of 1236 mm. In life the middorsum was a golden tan; the top of the head was a vivid green. One individual had ingested a _Smilisca baudini_. The local name is _bejuquillo_.

=Ninia sebae sebae= (Dumeril, Bibron and Dumeril)

Toocog, 1.

This specimen, a male having 144 ventrals and 55 caudals, was found beneath bark on a log in the forest. There is a black band five scales in length on the nape followed posteriorly by a red band six scales in length and then by a complete black band one and one-half scales in length. The rest of the body is dull red with 16 incomplete black bands one to one and one-half scales in length on the anterior two-thirds of the body.

=Oxybelis aeneus aeneus= (Wagler)

Chinaja, 1; 20 km. NNW of Chinaja, 1.

One individual was found in a low tree; the other was in a bush. Both specimens are males; the largest has a body length of 754 mm. and a total length of 1286 mm. Bogert and Oliver (1945:388) distinguished _O. aeneus aeneus_ in Central and South America from _O. aeneus auratus_ in Mexico in that the diameter of the eye is more than the length of the internasal, whereas in _O. aeneus auratus_ the diameter of the eye is less than the length of the internasal. Stuart (1958:27) stated that on the basis of this character three specimens from Tikal in northeastern El Peten definitely were _O. aeneus aeneus_. Of the present specimens from southern El Peten, one has an internasal:eye ratio of 1.08; the other has a ratio of 0.87. A careful review of these snakes is needed to verify the validity of the characters used to separate the subspecies and to determine areas of intergradation. The local name for the vine-snake is _bejuquillo_.

=Pliocercus euryzonus aequalis= Salvin

Chinaja, 1; Rio San Roman, 1.

These specimens are tentatively referred to _P. euryzonus_. KU 57160 is a female having 130 ventrals, 87 caudals, and 23 black rings on the body; KU 58150 is a juvenile having 128 ventrals, 79 caudals, and 27 black rings on the body. In both specimens the tip of the snout is yellow; a broad yellow band on the parietals and temporals is bordered posteriorly by a black band on the nape. The black rings on the body are not bordered by yellow, but black rings on the tail have yellow borders ventrally. In the red interspaces between the black rings, black flecks and spots, especially posteriorly, tend to form secondary black rings (Fig. 6a). According to Stuart (1948:71), _P. euryzonus aequalis_ has 25 to 27 black rings on the body, whereas _P. elapoides salvini_, which also occurs in El Peten, has 15 to 23 black rings.

The specimen from the Rio San Roman contained a partly digested _Bolitoglossa moreleti mulleri_. Locally _Piocercus_ is called _coral_ or _coralillo_.

=Pseustes poecilonotus poecilonotus= (Guenther)

Chinaja, 3; 20 km. NNW of Chinaja, 1.

Two juveniles were on the forest floor; one juvenile and an adult were on low bushes. The juveniles have a tan dorsum with reddish brown blotches; the belly is gray, and the iris is cream-color above and brown below. The one adult is olive-brown above and creamy white below on the anterior three-fourths of the body; posteriorly it is black above and below. There are no paravertebral dark stripes nor pale spots on the dorsal scales.

Two specimens (one juvenile and the adult) when encountered compressed the anterior part of the body laterally and struck repeatedly. Locally the adults are called _sumbadora_.

=Sibon dimidiata dimidiata= (Guenther)

20 km. NNW of Chinaja, 2.

Both snakes were obtained from trees when they were felled. In life the dorsum was pinkish orange with dark chocolate brown blotches narrowly edged with black.

=Sibon nebulata nebulata= (Linnaeus)

20 km. NW of Chinaja, 1.

This specimen, a male having a body length of 544 mm. and a tail length of 198 mm., was found in a felled tree. In life the belly was pink and black; the dorsal black blotches were narrowly outlined with pink.

=Spilotes pullatus mexicanus= (Laurenti)

Chinaja, 3; 20 km. NNW of Chinaja, 1; Sayaxche, 1.

This large snake, locally called _mica_, seems to be equally at home on the ground and in low trees and bushes. It is fast moving for a large snake; two individuals escaped capture. The natives said that this snake eats other snakes, but examination of stomachs revealed no supporting evidence.

=Stenorrhina degenhardti= (Berthold)

Chinaja, 1.

This specimen, a female having 158 ventrals, 37 caudals, and a total length of 489 mm., was found on the forest floor. On the olive-brown dorsum are 27 irregular, narrow, dark brown, transverse bands. The head is uniform olive-brown; the chin and labials are cream-color. The venter is cream-color with a row of brown spots forming a midventral stripe. A large spider was found in the stomach.

I have refrained from assigning a subspecific name to this snake. Cursory examination of specimens from throughout Mexico and Central America reveals a bewildering array of variation in coloration that suggests that the subspecies _mexicanus_ is not recognizable, or that two species occur sympatrically in parts of southern Mexico and northern Central America.

=Tretanorhinus nigroluteus lateralis= Bocourt

Chinaja, 1.

A single male having 136 ventrals, 75 caudals, and a total length of 407 mm. was found by a stream in camp. The dorsum is pale grayish tan with 34 pairs of small chocolate brown spots, some of the anterior ones of which are connected across the back. A cream-colored lateral stripe is on the third and fourth dorsal scale-rows anteriorly and the second and third rows posteriorly. The lower dorsal scale rows are black. The venter is dark grayish brown with cream-colored flecks anteriorly and creamy gray posteriorly where the dark color is restricted to the midventral region and the lateral edges of ventrals and first dorsal scale-row.

=Xenodon rabdocephalus mexicanus= Smith

Chinaja, 1; 20 km. NNW of Chinaja, 1.

Both individuals were found on the forest floor. An adult male having a total length of 420 mm. has a cream-colored venter with brown flecks. A juvenile having a total length of 172 mm. has a creamy white belly with black crossbands.

At the suggestion of L. C. Stuart, I am following Schmidt (1941:501) in placing _X. mexicanus_ as a subspecies of _X. rabdocephalus_.

=Micrurus affinis apiatus= (Jan)

20 km. NNW of Chinaja, 2; Sayaxche, 1.

All specimens were found beneath litter on the forest floor. All are males having 202 to 211 (average 205) ventrals, 53 to 56 (54.6) caudals, and 34 to 48 (41) primary black rings on the body. There are no yellow rings, and black spots in the red interspaces tend to form secondary black rings (Fig. 6b), the same as in _Pliocercus euryzonus aequalis_. The local name is _coral_ or _coralillo_.

=Bothrops atrox asper= (Garman)

15 km. NW of Chinaja, 1; Sayaxche, 1.

Although we found only two specimens, natives and workmen at the camp at Chinaja stated that the _barba amarilla_, as this snake is known locally, had been abundant when the camp had been established less than two years before our visit.

=Bothrops nasutus= Bocourt

12 km. NW of Chinaja, 1.

This specimen, a male having a total length of 415 mm., was found on the forest floor. The dorsum is brown with dark brown blotches separated middorsally by a narrow orange-tan stripe extending from the nape to the base of the tail. The belly is grayish tan with white flecks on the lateral edges of the ventrals. The local name is _nahuyaca_.

=Bothrops nummifer nummifer= (Rueppell)

15 km. NW of Chinaja, 2; Sayaxche, 1.

Two individuals were found on the forest floor, and one adult, having a total length of 953 mm., was removed from the stomach of a large _Drymarchon corais melanurus_. There is considerable variation in color and pattern. A juvenile (KU 58104), having a total length of 332 mm., has a tan dorsum with 19 interconnected dark brown, diamond-shaped, middorsal blotches, the lateral extensions of which are black; the belly is a cream-color with brown squares. An adult female (KU 55706), having a total length of 779 mm., has a dorsal coloration like the preceding specimen, except that the lateral extensions of the dorsal blotches are brown; the belly is a uniform cream-color. A second adult female (KU 55707), having a total length of 953 mm., has a brown dorsum with 21 interconnected black, diamond-shaped, middorsal blotches, the lateral extensions of which are black; the belly is a cream-color with black squares.

The local name for this species is _braza de piedra_.

=Bothrops schlegeli schlegeli= (Berthold)

Paso Subin, 1.

This specimen was taken from the thatched roof of a house at the edge of the forest and contained the remains of a small mammal. The local name is _nahuyaca_.

HYPOTHETICAL LIST OF SPECIES

Listed below are thirteen species that have not been found in southern El Peten but that probably occur there.

=_Dermophis mexicanus mexicanus_= (Dumeril and Bibron).--Natives
at Chinaja know caecilians, which they call _dos cabezas_.
This species has been taken in Tabasco and northern Chiapas.
Its occurrence in southern El Peten is expected. Less likely,
the caecilian known to the natives at Chinaja is _Gymnopis
oligozona_, which is known from Finca Volcan on the southern
slopes of the valley of the Rio Cahabon in Alta Verapaz.

=_Gastrophryne elegans_= (Boulenger).--This small fossorial frog
is known from Piedras Negras (Taylor and Smith, 1945:604), 12
miles east of Yaxha (Stuart, 1934:7), and Tikal (Stuart,
1958:18), all in northern and central El Peten. Two specimens
in the collection of the University of Kansas are from 28
kilometers northeast of Campur, Alta Verapaz. Probably the
species ranges throughout the forested lowlands of northern
Alta Verapaz and El Peten.

=_Mabuya brachypoda_= Taylor.--The absence of this widespread
lizard in our collections cannot be explained. Probably it
occurs in southern El Peten, for it is known in northern and
central El Peten and in Alta Verapaz.

=_Dendrophidion vinitor_= Smith.--This snake is known from
Piedras Negras, El Peten and from various localities in Alta
Verapaz; it is an inhabitant of humid forest and should occur
in southern El Peten.

=_Elaphe triaspis mutabilis_= (Cope).--The subspecies _E.
triaspis mutabilis_ is known from Alta Verapaz and _E.
triaspis triaspis_ from the Yucatan Peninsula, British
Honduras, and Uaxactun in northern El Peten. Because of the
much higher degree of resemblance between the faunas of
southern El Peten and Alta Verapaz as compared with southern
El Peten and Yucatan, _E. triaspis mutabilis_ would be
expected to occur in southern El Peten.

=_Ninia diademata nietoi_= Burger and Werler.--This snake is
known from Tikal and from Alta Verapaz; it is a small
cryptophile that probably occurs in southern El Peten.

=_Oxyrhophus petola aequifasciatus_= Werner.--This snake, which
probably is conspecific with _Oxyrhophus baileyi_ in southern
Veracruz, Mexico, is known from Tikal, British Honduras, and
Alta Verapaz; it is expected in southern El Peten.

=_Pliocercus elapoides salvini_= Mueller.--This species is
widespread in the Atlantic lowlands of southern Mexico and
northern Central America; the subspecies _P. elapoides
salvini_ occurs in Alta Verapaz and probably in southern El
Peten.

=_Rhadinaea decorata decorata_= (Guenther).--This is another
small cryptophile that is widespread on the Atlantic lowlands
from Mexico to Panama; it definitely is expected at places
like Chinaja in southern El Peten.

=_Scaphiodontophis annulatus_= (Dumeril and Bibron).--Three
subspecies of _Scaphiodontophis annulatus_ are recognized in
northern Central America: _S. annulatus annulatus_ from Alta
Verapaz, _S. annulatus hondurensis_ from northern Honduras,
and _S. annulatus carpicinctus_ from Piedras Negras and Tikal
in El Peten and from British Honduras. This rare and highly
variable species probably occurs in southern El Peten.

=_Tantilla schistosa schistosa_= (Bocourt).--This widespread
species in Central America is known from several localities in
Alta Verapaz and almost certainly occurs in southern El Peten.

=_Tropidodipsas sartori sartori_= Cope.--This fossorial species
has been collected in northern El Peten and in Alta Verapaz.
The natives at Chinaja described to me a _coral_ having orange
rings on a black body that likely was this species.

=_Micrurus elegans veraepacis_= Schmidt.--This species has been
collected at various localities in Alta Verapaz and in
Chiapas, inhabits areas like those in southern El Peten, and
probably occurs there.

SUMMARY

A study of the amphibians and reptiles in the rainforests of southern El Peten, Guatemala, reveals the presence of 78 species; an additional 13 species probably occur there. In this tropical area having a high amount of rainfall most of the species of amphibians and reptiles have extensive ranges in the wet forests on the Atlantic lowlands of southern Mexico and northern Central America; some species that more frequently are found in sub-humid forests also occur.

Ecologically the fauna is divided into five major habitats--aquatic, aquatic margin, fossorial, terrestrial, and arboreal. Forty-two per cent of the 78 species are wholly or partly arboreal. The fauna is most closely related to that in Alta Verapaz, Guatemala, but includes many species that occur in the Tikal-Uaxactun area in northeastern Guatemala.

_Eleutherodactylus rostralis_ (Werner) and _E. rhodopis_ (Cope) are redefined and their relationships are suggested. The color phases of _Dryadophis melanolomus laevis_ and _D. m. alternatus_ are discussed; _Dryadophis sanguiventris_ Taylor is synonymized with _Dryadophis melanolomus alternatus_ (Bocourt).

The breeding habits, eggs, and tadpoles of the hylid frogs _Hyla ebraccata_ and _Phyllomedusa callidryas taylori_ are described, as are the eggs and juveniles of _Laemanctus deborrei_.

LITERATURE CITED

BAYLOR, E. R. AND STUART, L. C.

1961. A new race of _Bufo valliceps_ from Guatemala. Proc.
Biol. Soc. Washington, 74:195-202, August 11.

BOGERT, C. M. AND OLIVER, J. A.

1945. A preliminary analysis of the herpetofauna of Sonora.
Bull. Amer. Mus. Nat. Hist., 83:297-426, March 30.

BROCCHI, P.

1881-1883 Etude des batraciens de l'Amerique Centrale. Mission
scientifique au Mexique. Paris, Imprimerie Nationale, 3
(2):1-122, pls. 1-21.

DUELLMAN, W. E.

1958. A review of the frogs of the genus _Syrrhophus_ in
western Mexico. Occas. Papers Mus. Zool. Univ. Michigan,
594:1-15, pls. 1-3, June 6.

1960. A distributional study of the amphibians of the Isthmus
of Tehuantepec, Mexico. Univ. Kansas Publ. Mus. Nat. Hist.,
13:21-72, August 16.

1961. A record size for _Drymarchon corais melanurus_. Copeia,
1960 (4):367-368, January.

DUNN, E. R. AND EMLEN, J. T.

1932. Reptiles and amphibians from Honduras. Proc. Acad. Nat.
Sci. Philadelphia, 84:21-32, March 22.

FIRSCHEIN, I. L. AND SMITH, H. M.

1957. A high-crested race of toad (_Bufo valliceps_) and other
noteworthy reptiles and amphibians from southern Mexico.
Herpetologica, 13:219-222, October 31.

LUNDELL, C. L.

1937. The vegetation of Peten. Carnegie Institute Washington
Publ. 178:1-244, pls. 1-39. June 16.

NEILL, W. T. AND ALLEN, R.

1959. Studies on the amphibians and reptiles of British
Honduras. Publ. Ross Allen's Reptile Inst., 2:1-76, November
10.

SAPPER, K.

1932. Klimakunde von Mittelamerika. _In_ Handbuch Klimakunde,
2:1-74, Taf. 1-13.

SCHMIDT, K. P.

1936. Guatemalan salamanders of the genus _Oedipus_. Zool.
Ser. Field Mus. Nat. Hist., 20:135-166, October 31.

1941. The amphibians and reptiles of British Honduras. Zool.
Ser. Field Mus. Nat. Hist, 22:475-510, December 30.

1946. Turtles collected by the Smithsonian Biological Survey
of the Panama Canal Zone. Smithsonian Misc. Coll., 106
(8):1-9, pl. 1, August 1.

SIMPSON, G. G.

1960. Notes on the measurement of faunal resemblance. Amer.
Jour. Sci., 258-A:300-311.

SMITH, H. M. AND TAYLOR, E. H.

1945. An annotated checklist and key to the snakes of Mexico.
Bull. U. S. Natl. Mus., 187: iv + 239 pp., October 5.

1948. An annotated checklist and key to the amphibia of
Mexico. Bull. U. S. Natl. Mus., 194: iv + 118 pp., June 17.

1950. An annotated checklist and key to the reptiles of Mexico
exclusive of the snakes. Bull. U. S. Natl. Mus., 199: v + 253
pp., October 26.

STUART, L. C.

1934. A contribution to a knowledge of the herpetological
fauna of El Peten, Guatemala. Occas. Papers Mus. Zool. Univ.
Michigan, 292:1-18, June 29.

1935. A contribution to a knowledge of the herpetology of a
portion of the savanna region of central Peten, Guatemala.
Misc. Publ. Mus. Zool. Univ. Michigan, 29:1-56, pls. 1-4,
October 1.

1937. Some further notes on the amphibians and reptiles of the
Peten forest of northern Guatemala. Copeia, 1937 (1):67-70,
April 10.

1941a. Studies of Neotropical Colubrinae VIII. A revision of
the genus _Dryadophis_ Stuart, 1939. Misc. Publ. Mus. Zool.
Univ. Michigan, 49:1-105, pls. 1-4, March 19.

1941b. Two new species of _Eleutherodactylus_ from Guatemala.
Proc. Biol. Soc. Washington, 54:197-200, December 8.

1943. Taxonomic and geographic comments on Guatemalan
salamanders of the genus _Oedipus_. Misc. Publ. Mus. Zool.
Univ. Michigan, 56:1-33, pls. 1-2, January 30.

1948. The amphibians and reptiles of Alta Verapaz, Guatemala.
Misc. Publ. Mus. Zool. Univ. Michigan, 69:1-109, June 12.

1950. A geographic study of the herpetofauna of Alta Verapaz,
Guatemala. Contr. Lab. Vert. Biol. Univ. Michigan, 45:1-77,
pls. 1-9, May.

1958. A study of the herpetofauna of the Uaxactun-Tikal area
of northern El Peten, Guatemala. Contr. Lab. Vert. Biol. Univ.
Michigan, 75:1-30, June.

TAYLOR, E. H.

1936. A taxonomic study of the cosmopolitan scincoid lizards
of the genus _Eumeces_. Univ. Kansas Sci. Bull., 23:1-643,
August 15.

1954. Further studies on the serpents of Costa Rica. Univ.
Kansas Sci. Bull., 36:673-801, July 15.

TAYLOR, E. H. AND SMITH, H. M.

1945. Summary of collections of amphibians made in Mexico
under the Walter Rathbone Bacon Traveling Scholarship. Proc.
U. S. Natl. Mus., 95:521-613, June 30.

_Transmitted November 29, 1962._

29-5935

UNIVERSITY OF KANSAS PUBLICATIONS MUSEUM OF NATURAL HISTORY

Institutional libraries interested in publications exchange may obtain this series by addressing the Exchange Librarian, University of Kansas Library, Lawrence, Kansas. Copies for individuals, persons working in a particular field of study, may be obtained by addressing instead the Museum of Natural History, University of Kansas, Lawrence, Kansas. There is no provision for sale of this series by the University Library, which meets institutional requests, or by the Museum of Natural History, which meets the requests of individuals. However, when individuals request copies from the Museum, 25 cents should be included, for each separate number that is 100 pages or more in length, for the purpose of defraying the costs of wrapping and mailing.

* An asterisk designates those numbers of which the Museum's supply (not the Library's supply) is exhausted. Numbers published to date, in this series, are as follows:

Vol. 1. Nos. 1-26 and index. Pp. 1-638, 1946-1950.

*Vol. 2. (Complete) Mammals of Washington. By Walter W. Dalquest.
Pp. 1-444, 140 figures in text. April 9, 1948.

Vol. 3. *1. The avifauna of Micronesia, its origin, evolution, and
distribution. By Rollin H. Baker. Pp. 1-359, 16 figures
in text. June 19, 1951.

*2. A quantitative study of the nocturnal migration Of birds.
By George H. Lowery, Jr. Pp. 361-472, 47 figures in text.
June 29, 1951.

3. Phylogeny of the waxwings and allied birds. By M. Dale
Arvey. Pp. 473-530, 49 figures in text, 13 tables. October
10, 1951.

*4. Birds from the state of Veracruz, Mexico. By George H.
Lowery, Jr., and Walter W. Dalquest. Pp. 531-649, 7
figures in text, 2 tables. October 10, 1951.

Index. Pp. 651-681.

*Vol. 4. (Complete) American weasels. By E. Raymond Hall. Pp. 1-466, 41
plates, 31 figures in text. December 27, 1951.

Vol. 5. Nos. 1-37 and index. Pp. 1-676, 1951-1953.

*Vol. 6. (Complete) Mammals of Utah, _taxonomy and distribution_. By
Stephen D. Durrant. Pp. 1-549, 91 figures in text, 30
tables. August 10, 1952.

Vol. 7. Nos. 1-15 and index. Pp. 1-651, 1952-1955.

Vol. 8. Nos. 1-10 and index. Pp. 1-675. 1954-1956.

Vol. 9. *1. Speciation of the wandering shrew. By James S. Findley.
Pp. 1-68, 18 figures in text. December 10, 1955.

2. Additional records and extension of ranges of mammals from
Utah. By Stephen D. Durrant, M. Raymond Lee, and Richard
M. Hansen. Pp. 69-80. December 10, 1955.

3. A new long-eared myotis (Myotis evotis) from northeastern
Mexico. By Rollin H. Baker and Howard J. Stains. Pp.
81-84. December 10, 1955.

4. Subspeciation in the meadow mouse, Microtus
pennsylvanicus, in Wyoming. By Sydney Anderson. Pp.
85-104, 2 figures in text. May 10, 1956.

5. The condylarth genus Ellipsodon. By Robert W. Wilson. Pp.
105-116, 6 figures in text. May 19, 1956.

6. Additional remains of the multituberculate genus
Eucosmodon. By Robert W. Wilson. Pp. 117-123, 10 figures
in text. May 19, 1956.

7. Mammals of Coahuila, Mexico. By Rollin H. Baker. Pp.
125-335, 75 figures in text. June 15, 1956.

8. Comments on the taxonomic status of Apodemus peninsulae,
with description of a new subspecies from North China. By
J. Knox Jones, Jr. Pp. 337-346, 1 figure in text, 1 table.
August 15, 1956.

9. Extensions of known ranges of Mexican bats. By Sydney
Anderson. Pp. 347-351. August 15, 1956.

10. A new bat (Genus Leptonycteris) from Coahuila. By Howard
J. Stains. Pp. 353-356. January 21, 1957.

11. A new species of pocket gopher (Genus Pappogeomys) from
Jalisco, Mexico. By Robert J. Russell. Pp. 357-361.
January 21, 1957.

12. Geographic variation in the pocket gopher, Thomomys
bottae, in Colorado. By Phillip M. Youngman. Pp. 363-387,
7 figures in text. February 21, 1958.

13. New bog lemming (genus Synaptomys) from Nebraska. By J.
Knox Jones, Jr. Pp. 385-388. May 12, 1958.

14. Pleistocene bats from San Josecito Cave, Nuevo Leon,
Mexico. By J. Knox Jones, Jr. Pp. 389-396. December 19,
1958.

15. New subspecies of the rodent Baiomys from Central America.
By Robert L. Packard. Pp. 397-404. December 19, 1958.

16. Mammals of the Grand Mesa, Colorado. By Sydney Anderson.
Pp. 405-414, 1 figure in text. May 20, 1959.

17. Distribution, variation, and relationships of the montane
vole, Microtus montanus. By Sydney Anderson. Pp. 415-511,
12 figures in text, 2 tables. August 1, 1959.

18. Conspecificity of two pocket mice, Perognathus goldmani
and P. artus. By E. Raymond Hall and Marilyn Bailey
Ogilvie. Pp. 513-518, 1 map. January 14, 1960.

19. Records of harvest mice, Reithrodontomys, from Central
America, with description of a new subspecies from
Nicaragua. By Sydney Anderson and J. Knox Jones, Jr. Pp.
519-529. January 14, 1960.

20. Small carnivores from San Josecito Cave (Pleistocene),
Nuevo Leon, Mexico. By E. Raymond Hall. Pp. 531-538, 1
figure in text. January 14, 1960.

21. Pleistocene pocket gophers from San Josecito Cave, Nuevo
Leon, Mexico. By Robert J. Russell. Pp. 539-548, 1 figure
in text. January 14, 1960.

22. Review of the insectivores of Korea. By J. Knox Jones,
Jr., and David H. Johnson. Pp. 549-578. February 23, 1960.

23. Speciation and evolution of the pygmy mice, genus Baiomys.
By Robert L. Packard. Pp. 579-670, 4 plates, 12 figures in
text. June 16, 1960.

Index. Pp. 671-690

Vol. 10. 1. Studies of birds killed in nocturnal migration. By
Harrison B. Tordoff and Robert M. Mengel. Pp. 1-44, 6
figures in text, 2 tables. September 12, 1956.

2. Comparative breeding behavior of Ammospiza caudacuta and
A. maritima. By Glen E. Woolfenden. Pp. 45-75, 6 plates, 1
figure. December 20, 1956.

3. The forest habitat of the University of Kansas Natural
History Reservation. By Henry S. Fitch and Ronald R.
McGregor. Pp. 77-127, 2 plates, 7 figures in text, 4
tables. December 31, 1956.

4. Aspects of reproduction and development in the prairie
vole (Microtus ochrogaster). By Henry S. Fitch. Pp.
129-161, 8 figures in text, 4 tables. December 19, 1957.

5. Birds found on the Arctic slope of northern Alaska. By
James W. Bee. Pp. 163-211, plates 9-10, 1 figure in text.
March 12, 1958.

*6. The wood rats of Colorado: distribution and ecology. By
Robert B. Finley, Jr. Pp. 213-552, 34 plates, 8 figures
in text, 35 tables. November 7, 1958.

7. Home ranges and movements of the eastern cottontail in
Kansas. By Donald W. Janes. Pp. 553-572, 4 plates, 3
figures in text. May 4, 1959.

8. Natural history of the salamander, Aneides hardyi. By
Richard F. Johnston and Gerhard A. Schad. Pp. 573-585.
October 8, 1959.

9. A new subspecies of lizard, Cnemidophorus sacki, from
Michoacan, Mexico. By William E. Duellman. Pp. 587-598,
2 figures in text. May 2, 1960.

10. A taxonomic study of the middle-American snake, Pituophis
deppei. By William E. Duellman. Pp. 599-610, 1 plate, 1
figure in text. May 2, 1960.

Index. Pp. 611-626.

Vol. 11. Nos. 1-10 and index. Pp. 1-703, 1958-1960.

Vol. 12. 1. Functional morphology of three bats: Sumops, Myotis,
Macrotus. By Terry A. Vaughan. Pp. 1-153, 4 plates, 24
figures in text. July 8, 1959.

*2. The ancestry of modern Amphibia: a review of the evidence.
By Theodore H. Eaton, Jr. Pp. 155-180, 10 figures in text.
July 10, 1959.

3. The baculum in microtine rodents. By Sydney Anderson. Pp.
181-216, 49 figures in text. February 19, 1960.

*4. A new order of fishlike Amphibia from the Pennsylvanian of
Kansas. By Theodore H. Eaton, Jr., and Peggy Lou Stewart.
Pp. 217-240, 12 figures in text. May 2, 1960.

5. Natural history of the bell vireo. By Jon C. Barlow. Pp.
241-296, 6 figures in text. March 7, 1962.

6. Two new pelycosaurs from the lower Permian of Oklahoma. By
Richard C. Fox. Pp. 297-307, 6 figures in text. May 21,
1962.

7. Vertebrates from the barrier island of Tamaulipas, Mexico.
By Robert K. Selander, Richard F. Johnston, B. J. Wilks,
and Gerald G. Raun. Pp. 309-345, pls. 5-8. June 18, 1962.

8. Teeth of Edestid sharks. By Theodore H. Eaton, Jr. Pp.
347-362, 10 figures in text. October 1, 1962.

More numbers will appear in volume 12.

Vol. 13. 1. Five natural hybrid combinations in minnows (Cyprinidae).
By Frank B. Cross and W. L. Minckley. Pp. 1-18. June 1,
1960.

2. A distributional study of the amphibians of the
Isthmus of Tehuantepec, Mexico. By William E. Duellman.
Pp. 19-72, pls. 1-8, 3 figures in text. August 16, 1960.

3. A new subspecies of the slider turtle (Pseudemys scripta)
from Coahuila, Mexico. By John M. Legler. Pp. 73-84, pls.
9-12, 3 figures in text. August 16, 1960.

4. Autecology of the copperhead. By Henry S. Fitch. Pp.
85-288, pls. 13-20, 26 figures in text. November 30, 1960.

5. Occurrence of the garter snake, Thamnophis sirtalis, in
the Great Plains and Rocky Mountains. By Henry S. Fitch
and T. Paul Maslin. Pp. 289-308, 4 figures in text.
February 10, 1961.

6. Fishes of the Wakarusa river in Kansas. By James E. Deacon
and Artie L. Metcalf. Pp. 309-322, 1 figure in text.
February 10, 1961.

7. Geographic variation in the North American cyprinid fish,
Hybopsis gracilis. By Leonard J. Olund and Frank B. Cross.
Pp. 323-348, pls. 21-24, 2 figures in text. February 10,
1961.

8. Descriptions of two species of frogs, genus Ptychohyla;
studies of American hylid frogs, V. By William E.
Duellman. Pp. 349-357, pl. 25, 2 figures in text. April
27, 1961.

9. Fish populations, following a drought, in the Neosho and
Marais des Cygnes rivers of Kansas. By James Everett
Deacon. Pp. 359-427, pls. 26-30, 3 figs. August 11, 1961.

10. Recent soft-shelled turtles of North America (family
Trionychidae). By Robert G. Webb. Pp. 429-611, pls. 31-54,
24 figures in text. February 16, 1962.

Index. Pp. 613-624.

Vol. 14. 1. Neotropical bats from western Mexico. By Sydney Anderson.
Pp. 1-8. October 24, 1960.

2. Geographic variation in the harvest mouse. Reithrodontomys
megalotis, on the central Great Plains and in adjacent
regions. By J. Knox Jones, Jr., and B. Mursaloglu. Pp.
9-27, 1 figure in text. July 24, 1961.

3. Mammals of Mesa Verde National Park, Colorado. By Sydney
Anderson. Pp. 29-67, pls. 1 and 2, 3 figures in text. July
24, 1961.

4. A new subspecies of the black myotis (bat) from eastern
Mexico. By E. Raymond Hall and Ticul Alvarez. Pp. 69-72,
1 figure in text. December 29, 1961.

5. North American yellow bats, "Dasypterus," and a list of
the named kinds of the genus Lasiurus Gray. By E. Raymond
Hall and J. Knox Jones, Jr. Pp. 73-98, 4 figures in text.
December 29, 1961.

6. Natural history of the brush mouse (Peromyscus boylii) in
Kansas with description of a new subspecies. By Charles A.
Long. Pp. 99-111, 1 figure in text. December 29, 1961.

7. Taxonomic status of some mice of the Peromyscus boylii
group in eastern Mexico, with description of a new
subspecies. By Ticul Alvarez. Pp. 113-120, 1 figure in
text. December 29, 1961.

8. A new subspecies of ground squirrel (Spermophilus
spilosoma) from Tamaulipas, Mexico. By Ticul Alvarez. Pp.
121-124. March 7, 1962.

9. Taxonomic status of the free-tailed bat, Tadarida
yucatanica Miller. By J. Knox Jones, Jr., and Ticul
Alvarez. Pp. 125-133, 1 figure in text. March 7, 1962.

10. A new doglike carnivore, genus Cynaretus, from the
Clarendonian Pliocene, of Texas. By E. Raymond Hall and
Walter W. Dalquest. Pp. 135-138, 2 figures in text. April
30, 1962.

11. A new subspecies of wood rat (Neotoma) from northeastern
Mexico. By Ticul Alvarez. Pp. 139-143. April 30, 1962.

12. Noteworthy mammals from Sinaloa, Mexico. By J. Knox Jones,
Jr., Ticul Alvarez, and M. Raymond Lee. Pp. 145-159, 1
figure in text. May 18, 1962.

13. A new bat (Myotis) from Mexico. By E. Raymond Hall. Pp.
161-164, 1 figure in text. May 21, 1962.

14. The mammals of Veracruz. By E. Raymond Hall and Walter W.
Dalquest. Pp. 165-362, 2 figures. May 20, 1963.

15. The recent mammals of Tamaulipas, Mexico. By Ticul
Alvarez. Pp. 363-473, 5 figures in text. May 20, 1963.

More numbers will appear in volume 14.

Vol. 15. 1. The amphibians and reptiles of Michoacan, Mexico. By
William E. Duellman. Pp. 1-148, pls. 1-6, 11 figures in
text. December 20, 1961.

2. Some reptiles and amphibians from Korea. By Robert G.
Webb, J. Knox Jones, Jr., and George W. Byers. Pp.
149-173. January 31, 1962.

3. A new species of frog (Genus Tomodactylus) from western
Mexico. By Robert G. Webb, Pp. 175-181, 1 figure in text.
March 7, 1962.

4. Type specimens of amphibians and reptiles in the Museum
of Natural History, the University of Kansas. By William
E. Duellman and Barbara Berg. Pp. 183-204. October 26,
1962.

5. Amphibians and Reptiles of the Rainforests of Southern El
Peten, Guatemala. By William E. Duellman. Pp. 205-249,
pls. 7-10, 6 figures in text. October 4, 1963.

More numbers will appear in volume 15.