190 CATALOGUE OF MEXICAN ANIMALS. 



Scales in seventeen longitudinal rows, tbe median a little narrowed. 

 Kostral plate just visible from above. Prefrontals much longer than 

 wide, five or six times as large as internasals. Frontal subtriangular, 

 wider than long; superciliary not verj' small. Postocular very small ; 

 temporals very narrow, 1-2. Superior labials six ; all except first, 

 second, and fourth, longer than high ; the fifth and sixth twice as long 

 as high ; the first as high as long. Inferior labials seven, fourth largest ; 

 first of opposite sides well in contact. Postgeueials little different from 

 adjacent scales, not in contact. Gastrosteges, l73 ; anal, 1 ; urosteges, 

 28. Extremity of tail with a compressed horny cap. Color everywhere 

 blackish ; some brownish shades on the sides near the head. Free edges 

 of scuta and scutella, and of lateral scales, lighter. Total length, 445™°^ ; 

 of tail, 44""" ; of head to rictus oris, 10"'"'. 



San Jose Acateno, Vera Cruz ; Ko. 301. — E. D. Cope.] 



45. Adelphicos quadrivirgatus Jiiu. 



AdeJphicos quadrivirgatnus Jan, Arch, per la Zool., II, 186'2, p. 18; Duni6ril & 

 Bocourt, Miss. Scient. Mex., Ill, 1883, p. 554, pi. xxxii, fig. 11, 11a, 11&, 

 lie, llrf, lie. 



Vulg. — Culebra. 



Hab. — State of Vera Cruz. Jicaltepec ( Jalapa), Fo. 79, December. 



Fam. ELAPID^. 



46. Elaps nlgrocinctus Girard. 



Flaps vigrodnctus Girard, U. S. Wilkes's Astr. Exp., p. — . 

 Vulg. — Coralillo. 

 ^afe.— State of Chiapas. (1) Nos. 243, 244. 



47. Elaps apiatus, Jan. 



Elaps apiatus Jan, Prodr. Ophid., 1859, p. 11, i)l. A. 

 YuJg. — Coralilla. 

 Hab. — State of Vera Cruz. Jicaltepec (Jalapa), No. 40, December. 



48. Elaps bernadi Cope, sp. nov. 



Elaps hernadi Cope. (Described on subsequent page of this volume.) 

 Vulg. — Coralillo. 

 Eah.—^t-Ate of Vera Cruz. S. Jos6 Acateno, No. 300. 



Fam. CROTALID.^. 



49. Ophryacus undulatus (Jan). 



Atropns undnlatns Jan, Rev. ct Mag. Zool., 1859, p. 157. 

 Ophryacus nadulatus Cope, Proc. Am. Philos. Soc., 1884, p. — . 



Vulg. — Vivora cornuda. 



Eab.— State of Vera Cruz. Actopam, No. 296. 



50. Bothrops atrox (Liunicus). 



Coluber atrox Liume us, Syst. Nat., I, 1758, p. 222: I, 1766, p. 383. 

 Bothrops a/rox Wagler, Natiir. Syst., 1830, p. 1174. 



Vulg. — Nauyague, Nauyac, Xochinauyague. 



