280 CLASS XV. 



surface of the snout prolonged above the mouth. Most of the 

 species are from America, but some others are also met with in the 

 Indian Archipelago. One species occiirs in Greece and in Western 

 Asia. 



Typhlops ScHN., Cuv., Mere., Sciilegel. 



Note. — Characters of the family. The author of the genus is 

 J. G. Schneider, Hist. Amphib. ii. 1801, p. 339. 



A. With teeth in loiver jaw ; upper jaw edentulous. 



Catodon DuM., Bibr. Head depressed. Eyes subindistinct. 



Stenostoma Dum., Bibr. Head round, rotundate. Eyes distinct. 



Sp. Typhlops nigricans Schl., Ahh. Tab. 32, figs. 21 — 24; Cape of Good 

 Hope ; — Typhlops undecim-striatus Gov., Stenostoma albifrons DuM. ; Bra- 

 sil, &c. 



B. With loiver jaw edentulous. 

 + With head scaly. 



Cephalolepis Dum. and Bibr. 

 Sp. Typhlops squamosus ^c^Ij'EG. Abb. Tab. 32, figs 9 — 12, Gayenne. 



H" With head scutate. 



a) With nostrils lateral. 



Cathetorhinus Dum. and Bibr. 



TyiMops Dum. and Bibr. 



Sp. Tyjyhlops reticulatus Cvv., Gray, Anguis reticulata L., Typhlops lumhri- 

 calls ScHLEG. Abb, Tab. 32, figs, i — 4; Berthold Neue oder seltene 

 Amphibienarten, Gottingen, 1842, p. 8, Tab. i. figs, i — 3, Diet. univ. 

 d'H'ist. nat., Rept. PL vii. fig. 3 (under the name of Typhlops lumbrkalis), 

 Dum. et Bibr. Erpet. PI. 60 ; Surinam, the largest species of this family ; — 

 Typhlops RicJiardii Ddm., Typhlops cinereus Guer., Iconogr., Rept. PI. 18, 

 fig. 2, Antilles; — Typhlops vermicularis Merr., Typhlops flavescens Lao. 

 Quadr. ovip. et Serp. 11. p. 455, PI. 20, fig. i ; Morea, Island of Cyprus, 

 Georgia, &c. 



b) With nostrils inferior. 



Typhlina Wagl., Pilidion Dum. and Bibr. With eyes not con- 

 spicuous. 



Ophtkalmidion Dum. and Bibr. 



Onychocephcdus Dum. and Bibr. Eyes consjDicuous. Rostral 

 scute produced above the head into an elliptic flat disc. 



