99. coNTiA. 259 



p. 39, pi. iii. fig. 4 (1883), and Bull. Essex Inst. xxiv. 1892, p. 108 ? 

 H. Oarm. Bull. niin. Lab. iii. 1892, p. 282. 

 Liopeltis vernalis, Cope, Proe. Ac. Philad. 1860, p. 660; Jan, Icon.. 

 G4n. 31, pi. V. fig. 3 (1869). 



Eostral broader than deep, tlie portion visible from above nearly 

 half as long as its distance from the end of the snout ; nasal un^ 

 divided ; suture between the internasals shorter than that between 

 the prsefrontals ; frontal nearly once and a half as long as broad, 

 longer than its distance from the end of the snout, shorter than the 

 parietals ; loreal small, square, or a little deeper than long, or a 

 little longer than deep, rarely united with the nasal ; one (rarely 

 two) pree- and two postoculars ; temporals 1 + 2 (rarely 1 + 1); 

 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 

 in 15 rows. Ventrals 119-148; anal divided; subcaudals 65-94. 

 Uniform green above, upper lip and lower parts yellowish or greenish 

 white. 



Total length 450 millim. ; tail 160. 



North America, east of the Eocky Mountains. 



a. 2 (V. 127; 0.65). Halifax. 



b. S (V. 129 ; 0. 80). Illinois. Smithsonian Instit. [P.].. 



c. $ (V. 135 ; C. 77). Florida. 

 d-e. J (V. 119 ; 0. 74) N. America. 



& $ (V. 131 ; 0. 75). 

 /. cJ (V- 126 ; C. 89). —? (Named by Dr. Shaw C. cyaneus.). 



Eirenis agassizii, Jan, Arch. Zool. Anat. Phys. ii. 1863, p. 260, and 



Icon. Gin. 16, pi. v. fig. 3 (1866). 

 Liopeltis brevicauda, Jan, Elenco, p. 82 (1863), and Icon. 31, pi. vi. 



fig. 1 (1869). 

 Ablabes agassizii, Bouleng. Ann. ^ Mag. N. H. (6) xvi. 1885, p. 87. 



Eostral as deep as broad, visible from above ; nasal entire or 

 semidivided ; suture between the internasals as long as or shorter 

 than that between the prsefrontals ; frontal onee and a half to once 

 and two thirds as long as broad, longer than its distance from the 

 end of the snout, as long as the parietals ; loreal small, square, 

 rarely united with the nasal; one prse- and two postoculars; 

 temporals 1 + 1 (rarely 1 + 2) ; seven upper labials, third and fourth 

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

 chin-shields, which are longer than the posterior ; latter in «ont£tot 

 with each other. Scales in 13 rows. Ventrals 128-138; anal 

 divided; subcaudals 51-64. Olive above, uniform or with two 

 light, black-edged dorsal streaks ; sometimes a reddish-brown 

 vertebral band; labials whitish, edged with black; lower parts 

 uniform greenish white. 



Total length 380 millim. ; tail 85. 



Southern Brazil, Uruguay. 



