50 COLUBRID. 
eye ; lower parts yellow, with square brown spots, which are few 
anteriorly and numerous posteriorly. 
Total length 700 millim.; tail 125. 
South-eastern United States and Mexico. 
a. do (Sc. 29; V. 220; C. 72). Mexico. 
C. rosaceus, Cope, is probably a colour-variety of this species. 
23. Coluber obsoletus. 
Coluber obsoletus, Say, Long’s Exped. Rocky M. i. p. 140 (1823) ; 
Harl. Journ. Ac. Philad. vy. 1827, p. 347, and Med. Phys. Res. 
p. 112 (1835); Cope, Proc. U.S. Nat. Mus. xiv. 1892, p. 634; 
Hay, Batr. §& Rept. Indiana, p. 93 (1893). 
— — alleghaniensis, Holbr. N. Am. Herp. p. 111, pl. xx. (1836), and 
2nd ed. iii. p. 85, pl. xix. (1842); Dekay, N. York Faun., Rept. 
p. 36, pl. xii. fig. 26 (1842), 
quadrivittatus, Holbr. op. cit. 2nd ed. ili. p. 89, pl. xx.; Giinth. 
Cat. p. 88 (1858). 
Scotophis alleghaniensis, Baird § Gir. Cat. N. Am. Rept. p. 73 
1853). 
lindheimeri, Baird § Gir. l.e. p. 74. 
Flaphis quadrivittatus, Dum. § Bibr. vii. p. 265 (1854); Garm. N. 
Am, Rept. p. 56 (1888). 
spiloides, Dum. § Bibr. t. ce. p. 269. 
holbrookii, Dum. § Bibr. t.¢. p. 272. 
allechaniensis, Hallow. Proc. Ac. Philad. 1856, p. 245; Jan, 
Icon. Gén, 24, pl. ii. fig. 1 (1867). 
Coluber spiloides, Giinth. l. ¢. p. 90. 
Scotophis obsoletus, Kennicott, Proc. Acad. Philad. 1860, p. +330. 
Coluber lindheimerii, Cope, Check-List N. Am. Rept. p. 39 (1875). 
Elaphis obsoletus, Garm. 1. c. p. 54 (1888); H. Garm. Bull. MIilin. 
Lab, iii. 1892, p. 290. 
Pantherophis lindheimeri, Garm, Bull. Essex Inst. xxiv. 1892, p. 108. 
alleghaniensis, Garm. J. e. 
Rostral broader than deep, just visible from above ; internasals 
broader than long, much shorter than the prefrontals; frontal a 
little longer than broad, as long as its distance from the rostral, 
shorter than the parietals; loreal longer than deep ; one pree- and 
two postoculars; temporals 2438; eight upper labials, fourth and 
fifth entering the eye; four or five lower labials in contact with 
the anterior chin-shields, which are as long as the posterior. Scales 
very distinctly keeled, in 25 to 29 rows. Ventrals obtusely angulate 
laterally, 217-245; anal divided; subcaudals 72-93. Brown to 
black above; young with a series of large dorsal dark spots and 
two lateral series of smaller alternating spots, which may disappear 
or be replaced by four dark stripes. 
Total length 1360 millim.; tail 310. 
United States east of the Rocky Mountains. 
A. Nearly uniform black above and on the posterior two thirds of 
the lower parts. (C. obsoletus, Say.) 
a. 3 (Sc. 27; V. 288; N. America, Lord Ampthill [P.]. 
C. 80). 
