CLASS REPTILIA. 



ventus, Daud. Merr. Seba, ij. t. 86. f. 5. Col. lutrix, Lin. ? 

 Homalosoma arctiventris, Wag. Elaps Lutonia and E. Duber- 



ria, Sch. Duberria arctiventris, Fitz. O. punctatus. 



Col. punctatus, Latr. Homolosoma punctatum, Wagler. 



E. Head, very long, very distinct ; gape very wide ; tail, 

 very long ; scales small and oblique series, partly 

 keeled. Herpotodryas, Wag. Erpetodryas, Boie. Inhab. 

 South America. 



C. carinatus, Boie. Col. carinatus, Lin. Merr. Seba, ii* 

 t. 54, t. 5Q, f. 3, t. 71, f. 12. C. fuscus, Lin. Col. sub- 

 fuscus, Lacep. Natrix bicarinatus, Wag. — — E. Isevicollis, 



de Col. lagvicollis, Pr. Max. E. exoletus, Lin. Mus. 



Adolph. Col. bicarinatus, Pr. Max. Col. carinatus, var. 



Merr. Natrix exoleta, Lau. Col. quadricarinatus, Fitz. 



Erpet, Boie. Col. pyrrhopogon. Pr. Max. Col. sex- 



carinatus, Pr. Max. Natrix cinnamomea. Wag. Without 

 epidermis, back with six series of keeled scales. 



F. Tail conical, sub-caudal plates first simple, then two 



rowed, dorsal scales uniform. Hurria, Daud. 



Hurria bilineatus, Daud, Rup. Hurria Nympha, Mer. 



Col. Nympha, Daud. from Russel, t. 36, 37- 



G. Head scarcely distinct from the body, gape small or 

 moderate, teeth eolubrine, the hinder rather larger, scales 

 imbricate, very smooth, abdomen arcuate, Coronella Laur. 

 Erythrolampus Liophis and Cloelia, Wag. 



American. 



Cor. venustissima. Col. venustissima, Pr. Max. Col. bina- 



tus, Lich. Col. agilis, Lin. Col, ^sculapii, Lin. Mus. 



Adolph. t. 21. Col. poecelogyrus, Pr. Max. Liophis poe. 



Wag. Body marbled the whole length. Col. formosus, 



Pr. Max. Ery. formosus, Wag. Col. cloelia, Daud. 



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