870 13. COLUBRID.^ 



Nat. Mus., No. 24, 1883, p. 86; Cope, Proc. U. S. Nat. Mus., Vol. 

 XIV, 1892, p. 594; BouLENGER, Cat. Snakes Brit. Mus., Vol. II, 

 1894, p. 273; Van Denburgh, Occas. Papers Cal. Acad. Sci., V, 



1897, p. 159; Cope, Report U. S. Nat. Mus. for 1898 (1900), p. 

 950; Brown, Proc. Acad. Nat. Sci. Phila., 1901, p. 85; Ditmars, 

 Reptile Book, 1907, p. 372; Stejneger & Barbour, Check List 

 N. Amer. Amph. Rept., 1917, p. 93- 



Carphophis cincta Garman, Mem. Mus. Compr. Zool., Cambr., Vol. 



VIII, No. 3, 1883, pp. 100, 166. 

 Chilomeniscus stramineus cinctus Cope, Proc. U. S. Nat. Mus., Vol. XIV, 



1892, p. 594. 

 Chilomeniscus stramineus Jasciatus Cope, Proc. U. S. Nat. Mus., Vol. 



XIV, 1892, p. 595 (type locality. La Paz, Lower California). 

 Chilomeniscus stramineus Boulenger, Cat. Snakes Brit. Mus., Vol. II, 



1894, p. 273 (part). 

 Chilomeniscus Jasciatus Van Denburgh, Proc. Cal. .Acad. Sci., Ser. 2, 



Vol. 5, 1895, P- 139; M0CQ.UARD, Nouv. Arch. Mus. Hist. Nat., 



Ser. 4, Vol. I, 1899, p. 317; Cope, Report U. S. Nat. Mus., for 



1898, 1900, p. 951; Meek, Field Columbian Mus., Zool. Ser., Vol. 

 VII, No. I, 1906, p. 14; Stejneger & Barbour, Check List N. 

 Amer. Amph. Rept., 1917, p. 94; Nelson, Mem. Nat. Acad. Sci., 

 Vol. XVI, 1 92 1, pp. 114, 115. 



Description. — Head rather wide, little distinct from neck. 

 Snout rather broad, rounded, greatly depressed, pointed in 

 profile. Rostral plate very large, broad, prominent, exten- 

 sively reverted on upper surface of snout, often reaching 

 prefrontals, and otherwise bounded behind by two plates on 

 each side of head, these being a large plate, corresponding 

 to the internasal and nasals merged, and the first supralabial. 

 Plates on top of head are the naso-internasals, a pair of pre- 

 frontals, a frontal, supraocular of each side, and a pair of 

 rather short parietals. Posterior nasal small, sometimes 

 merged with anterior nasal and internasal, rarely distinct. 

 A small loreal very rarely present, normally none. One 

 preocular. Two postoculars. Temporals one followed by 

 one. Supralabials seven, third and fourth reaching eye, 

 second, third and fourth high. Inferior labials usually 



