108 BULLETIN 18 7, UNITED STATES NATIONAL MUSEUM 



p. 2; U. S. Nat. Mus. Bull. 175, 1940, pp. 42^7, figs. 24, 25.— Smith, Publ. 

 Field Mus. Nat. Hist., zool. ser., vol. 29, 1944, pp. 145-146. 



Type.—V.S.J^M. No. 1522. 



Type locality. — Biiena Vista, Coahuila. 



Range. — Northern Hidalgo to southeastern Coahuila, on the interior 

 arid slopes of the Sierra Madre Oriental (known from Buena Vista 

 and 30 miles west of La Rosa, Coahuila; Jacala and vicinity of Ixmi- 

 quilpan, Hidalgo; Galeana, Nuevo Leon; Miquihuana and Rancho 

 Santa Ana, Tamaulipas). 



PITUOPHIS DEPPEI LINEATICOLLIS (Cope) 



Arizona Uneaticollis Cope, Proc. Acad. Nat. Sci. Philadelphia, vol. 13, 1861, pp. 



300-301. 

 Pituophis Uneaticollis Gxjnthee, Biologia Central i-Americana, Rept., 1894, p. 124, 



pi. 47.— Stull, U. S. Nat. Mus. Bull. 175, 1940, pp. 47-52, fig. 26. 

 Pituophis deppei Uneaticollis Smith, Proc. U. S. Nat. Mus., vol. 93, 1943, pp. 



460-401. 



Type. — None known ; originally in Acad. Nat. Sci. Philadelphia. 



Type locality. — Jalapa, Veracruz. 



Range. — The edge of the plateau in central Veracruz southward 

 through central Oaxaca and Chiapas into central Guatemala; north- 

 ward from Oaxaca to central Guerrero and Morelos (known from San 

 Cristobal, Chiapas; Acahuizotla, Chilpancingo, and Omilteme, Guer- 

 rero; Tres Cumbres, Morelos; San Pedro Quiechapa, Oaxaca; Jalapa 

 and Acultzingo, VaTacvuz). 



PITUOPHIS VERTEBRALIS (Blainville) 



Coluber vertebralis Blainville, Nouv. Ann. Mus. Hist. Nat. Paris, vol. 4, 1835, 



p. 293, pi. 27, fig. 2. 

 Pituophis vertebr'alis Dum^ril, Bibkon, and Dum^ril, Erpetologie g^nerale, vol. 



7, pt. 1, 1854, pp. 238^-240.- Stull, U. S. Nat. Mus. Bull. 175, 1940, pp. 82-91, 



fig. 42. 



Type. — Mus. Hist. Nat. Paris. 



Type locality. — "California" (including Baja California). 



Range. — Central and southern Baja California. 



Genus PUOCERCUS Cope 



Pliocercus Cope, Proc. Acad. Nat. Sci. Philadelphia, vol. 12, 1860, p. 253. — Smith, 

 Proc. Biol. Soe. Washington, vol. 54, 1941, pp. 119-124; vol. 55, 1942, pp. 

 159-164 (summaries of Mexican species). 



Elapochrus Peters, Monatsb. Akad. Wiss. Berlin, 1860, p. 294." 



" Giinther (Biologia Ceutrali-Americana, Rept., 1893, p. 106) says that Elapochrus was 

 published on June 7, 1860, while Pliocercus did not appear until June 26, and he there- 

 fore places the latter as a synonym as Elapochrus. Dr. Dunn has advised, however, that 

 Salvin (Proc. Zool. Soc. London, 1861, p. 228) states the name proposed by Cope preceded 

 Peters's name by 2 days, and that Peters himself was satisfied that his name did not 

 precede Cope's (Monatsb. Al^ad. Wiss. Berlin, 1869, p. 876). While evidence is not 

 conclusive it does favor retention of Pliocercus and synonymizing Elapochrus with it. 



