54, ZAMBENIS. 
5. Zamenis constrictor. 
Coluber constrictor, Linn. S. N. i. Brin es Catesby, Nat. 
Harl. Journ, Ac. Philad. v. 1827, p. 548, iB, cad 
1835) ; Schleg. Phys. Serp. ii. p, 133 1887) 5 Storer iene 
sai gy ay, Faun. N. York, Rept. p. 35, 
Illin. Lab. iii. 189 
| 
i 
| 
p. 351 (1852). 
U.S. Nat. Mus. xiv. 1892 Pp 
—— fremontii, Baird § Gir. 1. ec. p. 95. 
; —— foxii, Baird § Gir. l.c. p. 96. 
Hist. Carol. ii. pl. xlviii. (1771) ; . 402 02 (1808 M4 
t. Mass. 225 (1839) ; Hatbr. N. Am. iii. p. 55, rat 
ip 9, 
Garni dm agp. e.g. 8 (1860); He Germ, Bal 
—— flaviventris, Say, “* Long's Exped. Rocky Mount. ii. p. 185 
(1828) ; Harl. U.cc.; Garm. Bull. Essex Inst, xxiv. 1892, p. 107. 
—— mormon, Baird § Gir. in Stansbury’s Exped. Great Salt Lake, 
Bascanion constrictor, Baird § Gir. Cat. N. Am. Rept. p. 93 (1853) ; 
Bocourt, Miss. Sc. Mex., “pg xl viii. fig. 5 (i800), Cops Proe. 
—— flaviventris, Baird § Gir. le. “ig Bocourt, Miss. Sc. Mex., 
Rept. p. mong xlviii. fig. 3 (1 
Herp. p. 127, pl. viii. figs. 12-19 (1888 
vil —19 (1858). 
aatdia wtenon, Berd § Girsd p. 101. 
aird § Gir. bef oF Gir. U.S. Explor. Exped., 
odon constrictor, Dum. § Bibr. vii. p. 183 (1854); Hallow. 
Ac. Philad. 1856, p. 242; Giinth. Cat. p. 108 (1858) ; Jan, 
Icon. Gén, 22, pl. iii. & pli iv. figs. 1 & 2 (1867). 
— flaviventris, Hallow. Proc, Ac. Philad. 1856, p. 241. 
—— testaceus, part., Giinth. 1. ¢. p. 108. 
—— constrictor flaviventris, Jan, op. cit. 48, pl. vi. fig. 2 (1876). 
Snout moderately prominent. Rostral as deep as broad or a 
little broader, the portion visible from above measuring one third 
to one half its distance from the frontal; internasals shorter than 
the prwefrontals ; frontal once and a half to once and three fourths 
as long as broad, anteriorly a little broader than the supraocular, as 
long as or a little longer than its distance from the end of the 
snout, nearly as long as the parietals ; loreal as long as deep or a 
little longer ; one prwocular (rarely divided), with a small sub- 
ocular below it; two postoculars ; temporals 2+2; seven (rarely 
Total length 1580 millim. ; tail 370. 
North America, North Mexico. 
(C. constrictor.) 
(V. 175; C. 97). New Orleans, 
& 8 wv. 180; C. 88). N. America. 
kul N. America. 
2c2 
"4 ire. 
eight) upper labials, third and fourth (or fourth and fifth) entering 
the eye; four lower labials in contact with the anterior chin- 
shields ; posterior chin-shields as long as or a little shorter than 
the anterior, and separated from each other by scales. Scales 
smooth, in 17 rows. Ventrals not distinctly angulate laterally, 
160-190 ; anal divided ; subcaudals 74-104. Olive to black 
above; young with transversely oval, dark, black-edged spots. 
A. Black ubove and below ; lips and throat yellowish. 
