L'-> COLUBRlD.t:. 



1. Contia aestiva. 



Coluber jestivus, Linn. S. N. i. p. 387 (1766) ; Daud. Rept.\\\. p. 101 



(1803) ; llarl. Journ. Ac. Philad. v. 1827, p. 367, and Phys. Mod. 



Rf*. p. 121 (1835). 

 I .rptophis restivus, Bell, Zool. Journ. ii. 1826, p. 329 ; Holbr. N. Am. 



Her}), iv. p. 17, pi. iii. (1842) ; Baird Of Gir. Cat. N. Am. Rept. 



p. 106 (1853), and Rep. U.S. Explor. R. R. x. pt.iii. pi. xxxii. fig. 79 



(1859)'. 

 Ilerpetodryas aestivus, Schleg. Phys. Serp. ii. p. 186, pi. vii. figs. 12 



& 13 (1837) ; Dum. $ Bibr. vii. p. 209 (1854). 

 Leptophis majalis, Baird 8f Gir. II. cc. p. 107, fig. 80, and Marcy's 



Explor. RedRiv.-p. 232, pi. ix. (1853). 

 Cvclophis aestivus, Giinth. Cat. p. 119 (1858) ; Garm. N. Am. Rept. 



"p. 40 (1883). 



Opheodrys aestivus, Cope, Proc. Ac. Philad. 1860, p. 560. 

 Liopeltis aestivus, Jan, Elenco, p. 81 (1863), and Icon. Gen. 31, pi. v. 



fig. 1 (1869). 



Philophyllophis majalis, Garm. Butt. Essex Inst. xxiv. 1892, p. 108. 

 Phyllophilophis aestivus, H. Garm. Butt. Illin. Lab. iii. 1892, p. 283. 



Rostral broader than deep, just visible from above ; nasal un- 

 divided ; suture between the internasals shorter than that between 

 the praefrontals ; frontal once and a half as long as broad, as long 

 as or a little longer than its distance from the end of the snout, 

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

 two postoculars ; temporals 1 + 2 ; seven upper labials, third and 

 fourth entering the eye; four lower labials in contact with the 

 anterior chin-shields ; posterior chin-shields longer than the anterior, 

 and in contact anteriorly. Scales striated and keeled, in 15 rows. 

 Ventrals 148-166; anal divided; subcaudals 111-148. Uniform 

 green above, upper lip and lower parts yellowish or greenish 

 white. 



Total length 670 millim. ; tail 260. 



United States, east of the Rocky Mountains. 





2. Contia vernalis. 



Coluber vernalis, JIarlan, Journ. Ac. Philad. v. 1827, p. 361, and 



/'////*. Med. Res. p. 124 (1835) ; Storer, Rep. Fish. Sf Rept. Mast. 



p. 224 (1839); Holbr. N. Am. Herp. iii. p. 79, pi. xvii. (1842) ; 



I)e Kay, N. Y. Faun. iii. p. 40, pi. xi. fig. 22 (1842). 

 Chlorosoma vernalis, Baird < Gir. Cat. N. Am. Rept. p. 108 (1853), 



and Rep. U.S. E.i-plor. R. R. x. pt. iii. pi. xxxii. fig. 81 (1869). 

 Ilerpetodryas vernalis, Hallow. Proc. Ac. Philad. 1856, p. 243. 

 Cycloph is vernalis, Giinth. Cat. p. 119 (1868); Garm. N. Am. Rept. 



