BATRACHIANS AND REPTILES, CENTRAL AMERICA AND MEXICO. Go 



Body and tail not preheusile ; nine normal head-shields AnciHlyodon^ Beauv. 



II. A rattle. 



Head with nine scuta above CrolaJopliorus- Gray. 



Head with scalesabove Crotalun-' Linu. 



S)/nopsia of the genera. 



Genera. Ko. ' Oenera. No. 



TyphlopiiisB C | Colubridre (coiifimted) — 



SteuostoniidBD 2 j Lycodoulina? 17 



Tortricidai 2 [ Leptoj;nathina3 7 



IJropeltidse 7 j Dipsadinic 7 



XonopeltidsB 1 ' Daaypeltinso 2 



Pythonidao 8 IToiualopsinaj 29 



Boida; 16 Acontiophidaj 1 



CharinidjB 1 



Acrocliordida) 2 



Nothopidao 2 



Hydrophidaj j 8 



Kajidas 19 



Elapidaa 3 



Colubridie— | DondraspididaB 1 



CalamariDfB 57 



Coronellinas 23 



Scytalinro 18 



Colubrinfe 35 



Philodryadinaj 9 



Dryophidinffi 7 



Psamiuophidlnee 3 



Causldaj 3 



Atractaspididio 1 



ViperidcB 7 



CrotalidsB 12 



Total 316 



A number of generic names have been given bj^ authors with detiuitions which do 

 not refer to the dentition. On this account I have been unable to include them in 

 the above tables. I have credited generic names to authors who have published the 

 first description, and not to those who have given them as nomina nuda. 



CATODONTA. 



STENOSTOMID^. 



Stenostoma Wagler. 



Dum. et Bibr., vi, 32 Rena Baird and Girard. 



Stenostoma. macrolepis Peters, Monatsbor. Akad. Wiss. Berlin, 1857, p. 402 ; Jan, 

 Iconogr. Gen. Ophid., Fasc. ii, tab. v, vi, fig. 10. ? S. myopicum Garmau, Mem. Mus. 

 Comp. Zijol. Cambridge, 1883, p. G. 

 Las Agnillilas, Michoacan, Duges. 

 Stenostoma dulce Baird, Girard, Rena diilcis Bd. Girard, Catal. Serpents, 142, 



Northern Mexico, Jan, Peters ; Batopilas, Chihuahua, Wilkinson. 

 Stenostoma ph.enops Cope, .Jo urn. Acad. Phila., 1875, p. 128. 



Coban, Guatemala, M. Uaguc ; Tehuantepec, Suviichra.it; Jalapa, Comision Geo- 

 grdfica-Expluradora. 

 Stenostoma albifrons Wagler, Dum. et Bibr., vi, 327 ; Cope, Jouru. Acad. Phila., 

 1875, p. 128. 

 Panama, C. B. Adams. 



Rena Baird & Girard. 



Catal. N. Amer. Rept. Serpents, 1853, x>. 142 ; Siagonodon Peters, Gesollsch. d. Natur- 

 forsch. Freunde Berlin, 1881, p. 71 ; Catodon Dura. Bibr., Erp. G6n., 1844, vi, p. 318, 

 not of Linn. 



• Ccnchris Daud. 



^ Candisona Fit-z., "Was'- S'jstru.rus Garman. 



* Caudisona Laur. Orotalophoras Linu., pt., Vropsophiis Wajj;l. 



