258 COLTTBKID^. 



1. Contia sestiva. 



Coluber Eestivus, Linn. S. N. i. p. 887 (1766) ; Baud. Sept. vii. p. 101 



(1803) ; Jlarl. Joitrn. Ac. Philad. v. 1827, p. 357, and Phys. Med. 



Res. p. 121 (1835). 

 licptophis Eestivus, Bell, Zool. Journ. ii. 1826, p. 329 ; Holbr. N. Am. 



Herp. iv. p. 17, pi. iii. (1842) ; Baird ^ Oir. Oat. N. Am. Rept. 



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



(1859). 

 Herpetodryaa sestivus, Sehleg. Phys. Serp. ii. p. 186, pi. vii. figs. 12 



& 13 (1837) ; Bum. 8f Bibr. vii. p. 209 (1854). 

 Leptophia majalis, Baird ^ Oir. II. cc. p. 107, fig. 80, and Marcy'.'s 



Explor. Red Riv. p. 232, pi. ix. (1853). 

 Oyclophis sestivus, Giinth. Cat. p. 119 (1858) ; Oarm. N. Am. Rept. 



p. 40 (1883). 

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

 Liopeltis sestivus, Jan, Elenco, p. 81 (1863), and Icon. Qin. 81, pi. v. 



fig. 1 (1869). 

 Philopliyllopliis majalis. Gam. Bull. Essex Inst. xxiv. 1892, p. 108. 

 Phyllophilophis sestivus, S. Garm. Bull. Illin. Lab. iii. 1892, p. 283. 



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

 divided ; suture between the internasals shorter than that between 

 the prsefrontals ; 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 prse- 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 16 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 Eocky Mountains. 



a. 5 (V. 159 ; C. 114). Michigan. 



J. cJ (V. 148; C.130). Bloomington, Indiana. 0. H. BoUman, Esq. [C.l. 



c. 2 (V. 151 ; C. 120). DeLware. H. Doubleday, Esq. fP.!. 



««.Yg.(V. 152; 0.148). Florida. Dr. Guillemard [P.]. 



e. 5 (V. 158 ; 0. 127). New Orleans. M. Sall6 [C.]. 



/. 2 (V. 162 ; 0. 114). Duval Co., Texas. W. Taylor, Esq. [0.1. 



g. d (V. 169 ; C. 130). Texas. 



h. Skull. United States. 



2. Contia vernalis. 



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



Phys. Med. Res. p. 124 (1835) ; Storer, Rep. Fish. 8f Rept. Mass. 



p. 224 (]839); Holbr. N. Am. Herp. iii. p. 79, pi. xvii. (1842) ; 



Be 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. Explor. R. R. x. pt. iii. pi. xxxii. fig. 81 (1859). 

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

 Cyclophis vernalis, Giinth. Cat. p. 119 (1858) ; Garm. N. Am. Rept. 



