Chapter M: ALUCO. Turric. recurvirostra, spinosa, serie simplici

Gualtieri was not cited, and the reference was to "N. Strombus tuberosus" (_Cerithium aluco_), not O. (_C. nodulosum_) of Rumphius. The inner lip was described as "non adnatum, sed prominens": "s. fuscis", and "Variat cauda recta, &c.", were not in the original.

Besides the published species, the following had been written, but omitted in printing:--

TURRICULA ALBA. _T._ alba recurvirostra, anfractibus margine crenulatis.

Bon. 3. t. 84. Rumph. t. 30. f. K. Pet. Gaz. t. 56. f. 4. d'Arg. Conch. t. 14. f. P. Gualt. Test. t. 57. f. D.

Testa lævis. Anfractus circiter 15, margine subcrenati. Color albus, sæpius saturatior ad marginem anfractuum. Apertura ovata, rostro canaliculato, recurvo. Labium interius adnatum, dente unico obsoleto.

This was evidently identical, from its synonymy, with the _M. vertagus_ of the 'Systema.'

TURRICULA SENTICOSA. _T._ reflexo-emarginata, costis reticulatis.

d'Arg. Conch. t. 12. f. O.

Testa gibba, costis sæpius 12 perpendiculari-obliquis, intertextis striis lamellosis transversis ad anastomosases muricatis, unde admodum scabra evadit. Anfractus ventricosi, sæpius x. Color griseus. Apertura ovata, interne striata, emarginata, parum reflexa.

Evidently this was identical with the _M. senticosus_ of the 'Systema.'

M. OLEAGINEUS. _M._ angulis sulcis inæqualibus, labio interiore rugoso, costis alternis.

Gualt. Test. t. 49. f. G. d'Arg. Conch. t. 13. f. M.

Habitus et structura _rubeculæ_, at octies major, nec vivide pictus, sed colore testaceo fasciis fuscis longitudinalibus. Apertura intus saturate crocea, rugis albis.

Apparently this was the _Triton pileare_ of authors,--not the Mediterranean shell (_T. corrugatus_) termed _M. pileare_ in the 'Systema.'

M. PILEUS HELVETICUS. _M._ angulis rotundatis, tuberculis conicis, apertura utrinque canaliculata.

d'Arg. Conch, t. 12. f. D. Rumph. t. 28. f. D.

Testa ovata, admodum inæqualis, adspersa nodis conicis tuberculatis inæqualibus. Costæ latere antico membranaceæ, primæ 2 oppositæ, reliquæ alternæ. Color flavus. Apertura hians, antice et postice canaliculatæ, faux intus striata. Labium exterius dentatum, intus dilatato-membranaceum.

This suits very fairly the _Triton lampas_ of authors; far better, indeed, than does the _M. Lampas_ of the 'Museum Ulricæ.'