60 



CROCODILUS. 



productiore sub-cylindrico, scutis eporosis, dorsi subrotundis 

 sexfariam dispositis, nuchee 4, cervicis 6. 



Croc, iiitermedius. Graves Ann. Gen. Sci. ii. 348. ^roc. 

 Journei, Bory St. V. Diet. Class. H. N. 



Hab. in America ? Mus. Bordeaux. 



Muzzle produced sub-cylindrical ; back with 6 series of oval 

 scales, and a distant series along each side ; nuchal plates 4, 

 cervical 6, placed in a round group. Scales all poreless. 

 Length 8i feet. Allied to the Gavials. 



8. Croc, acutus, {American Crocodile). Rostro producto 

 ad basin convexo, scutis dorsi interniediis quadratis, exteri- 

 oribus irregularibus subsparsis, nuchse 4, cervicis 6. 



Croc, acutus, Cuv. Ann. Mus. x. et Os. Fos. v. t. 1, f. 3, 

 14, et t. 2. f. 5, Geoff. Ann. Mus. ii. t. 37, Seba, t. 106 ? 

 (mala) t. 104, f. 1—9. 



Hab. in Insuhs Indise Occidentalis. 



Muzzle produced, convex at the base, slightly keeled ; back 

 ■with 4 central series of scales, the scales of the outer rows 

 irregular and strongly keeled. The nuchal plates 4, smeill; 

 the cervical plates 6, in a lozenge -shaped group. 



Bartrarn and M. Descourtilz, Voy. d'un Naturaliste, have 

 given the history of the manners of this species. 



Species duhicB. 



Croc. Siamensis, [Siam Crocodile.) Crista elevata biden- 

 tata in vertice, scutis cervicis 6. 



Croc. Siamensis, Schn. from a bad figure by Perrault, Mem. 

 Acad. Sci. avant 1699, t. 64, cop. E. M. t. 1, f. 3, et Faujas. 

 Hist. M.S. P.t.43,et Croc. ^a/ea/zw, Cuv. Os. Fos. v. t. l,f. 9. 



Hab. in Siam. 



Most allied to Croc, vulgaris, but differs in the central 

 occipital crest. 



Croc, pentonyx, Sch. is an imaginary species. Croc, 

 terrestris, Laurenti, is from a bad figure of Seba. 



Crocodili Fossiles. Cuv. Os. Fos. v. 161, &c. 



a. Croc. Brong7iiartii, n. 



Croc, de Muedon, Cuv. Os. Fos. v. 161, t. 6, f. 9, (dens) 

 :.f^^^- A fossil tooth found by M. Brongniart. 



