50 COLUBEID^. 



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. 



«. c? (So. 29 ; V. 220 ; 0. 72). Mexico. 



C. rosacms. Cope, is probably a colour-variety of this species. 



23. Coluber obsoletus. 



Coluber obsoletus, Say, in Long's Exped. Bocky M. i. p. 140 (1823) ; 



Harl. Journ. Ac. Philad. v. 1827, p. 847, and Med. Phys. Res. 



p. 112 (1835); Cope, Proc. ^U.S. Nat. Mus. xiv. 1892, p. 634; 



Hm/, Batr. Sr Rept. Indiana, p. 93 (1893). 

 — — alleghaniensis, Holhr. N. Am. JSerp. p. Ill, pi. xx. (1836), and 



2nd ed. iii. p. 85, pi. xix. (1842) ; Bekay, N. York Faun., Rept. 



p. 36, pi. xii. fig. 26 (1842). 

 quadrivittatua, Holbr. op. dt. 2nd ed. iii. p. 89, pi. xx. ; Giinth. 



Cat. p. 88 (1858). 

 Scotophis alleghaniensis, Baird ^ Gir. Cat. N. Am. Rept. p. 73 



(1853). 



lindheimeri, Baird Sr Gir. I. c. p. 74. 



Elapbis quadri-vittatus. Bum. 8f Bibr. vii. p. 265 (1854) ; Oarm. N. 



Am. Rept. p. 56 (1883). 



spiloides. Bum. 8r Bibr. t. c. p. 269. 



holbrookii, Bum. <§• Bibr. t. c. p. 272. 



alleghaniensis. Hallow. Proc. Ac. Philad. 1856, p. 243 ; Jan, 



Icon. Gin. 24, pi. ii. fig. 1 (1867). 

 Coluber spiloides, Giinth. I. c. p. 90. 



Scotophis obsoletus, Kennicoit, Proc. Acad. Philad. 1860, p. 830. 

 Coluber lindheimerii. Cope, Check-List N. Am. Rept. p. 39 (1875). 

 Elapbis obsoletus, Garm. I. c. p. 64 (1883) ; H. Garm. Bull. Illin. 



Lab. iii. 1892, p. 290. 

 Pantheropbis lindbeimeri, Garm. Bull. Essex Inst. xxiv. 1892, p. 108. 

 aUegbaniensis, Garm. I. c. 



Eostral broader than deep, just visible from above ; internasab 

 broader than long, much shorter than the prsefrontals ; frontal a 

 little longer than broad, as long as its distance from the rostral, 

 shorter than the parietals ; loreal longer than deep ; one prae- and 

 two postoculars; temporals 2+3; 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 miUim. ; tail 310. 



United States east of the Eocky Mountains. 



A. Nearly uniform black above and on the posterior two thirds of 

 the lower parts. (C obsoletus, Say.) 



a. (5 (Sc. 27 ; V. 233 : N. America. Lord Amptbill \V.\ 



C. 80). 



