Chapter M

Total length (estimated in part) ·404
Length of head ·093
Length of vertebral column ·253
Length of caudal fin (estimated) ·058
Length of mandible ·059
Length of jugular plate ·032
Length of dorsal region ·141
Length of caudal region ·112
Depth of body at origin of dorsal fin
Length of dorsal fin ·117
Length of femur ·027

From the insect beds near Florissant, Col.

PAPPICHTHYS, Cope.

U. S. Geol. Survey of the Terrs., 1872, p. 634.

Vertebræ short, dorsal with projecting diapophyses. Maxillary and dentary bones support but one series of teeth.

Pappichthys plicatus, Cope.

Loc. cit., p. 635.

From Henry's Fork.

Pappichthys lævis, Cope.

Loc. cit., p. 366.

Represented by three vertebræ from the posterior part of the dorsal region. The centra are subcircular and have deep articular cones, with their bottoms above the centre, and minutely perforate for the notochord. The centra are comparatively quite long, and have prominent projecting rims, and are truncate beneath. The facets for the neurapophyses are long, and are separated into two parts for the contiguous arches. The diapophyses are short and stout.

Measurements.