686 13. COLUBRIDZ 
Zamenis teniatus BouLeNcER, Cat. Snakes Brit. Mus., Vol. I, 1893, 
p- 390 (part); Cope, Report U. S. Nat. Mus. for 1898, 1900, p. 
815; Dirmars, Reptile Book, 1907, p. 289, pl. XC, fig. 2; Eris & 
Henperson, Univ. Colorado Studies, Vol. X, No. 2, 1913, p. 105. 
Zamenis teniatus teniatus Brown, Proc. Acad. Nat. Sci. Phila., 1gor, 
p- 62. 
Coluber teniatus teniatus SreEJNEGER & Barsour, Check List N. Amer. 
Amph. Rept., 1917, p. 80; VAN DensurcH & Stevin, Proc. Cal. 
Acad. Sci., Ser. 4, Vol. XI, 1921, pp. 28, 36, 40, 45. 
Description.—Head long, with flattened top and round- 
ed snout. Rostral plate large, about as high as broad, 
hollowed below, and bounded behind by internasal, anterior 
nasal and first labial plates. Plates on top of head are a 
pair of internasals, a pair of prefrontals, supraocular and 
part of upper preocular of each side, a long frontal, and a 
pair of large parietals. Anterior and posterior nasals dis- 
tinct. Loreal longer than high. Preoculars two, upper 
much larger than lower, rarely united. Postoculars two, 
nearly equal. Temporals two followed by two, sometimes 
1+2 or 1+1. Eight, or rarely seven, superior, and nine or 
10 (rarely seven) inferior labials, seventh of upper and fifth 
of lower largest, fourth and fifth upper reaching eye, first 
pair of lower meeting on median line. Genials in two pairs, 
anterior smaller than posterior. Scales on body smooth, in 
fifteen rows. Anal plate divided. Gastrosteges varying in 
number from 198 to 215. Urosteges in two series of from 
114 to 157. 
The color above is grayish or yellowish brown, palest on 
the tail, the scales of the sides more or less yellow, and with 
narrow dark lines along the middle of each row. These 
dark lines are sometimes present on the dorsal scales as well 
as on those of the sides, and a wider line often runs along 
the tips of the gastrosteges. The yellow of the lateral 
scales is variable in intensity, and sometimes—especially in 
