1 6 COLTTBErD^. 



Drymobius percarinatus, Cope, Proc. Amer. Philos. Soc. xxzi. 1893, 

 p. 344. 



Maxillary teeth 32 to 38, posterior moderately enlarged. Eostral 

 broader than deep, visible from above ; internasals as long as or a 

 little shorter than the prsefrontals ; frontal once and a half to once 

 and three fourths as long as broad, as long as its distance from the 

 end of the snout (longer in the young), as long as or a little shorter 

 than the parietals ; loreal usually longer than deep ; one praeocular, 

 not touching the frontal ; two or three postoculars ; temporals 

 2 + 2 ; nine (exceptionally ten) upper labials, fourth, fifth, and 

 sixth (or fifth, sixth, and seventh) entering the eye ; five (rarely 

 four) lower labials in contact with the anterior chin-shields, which 

 are shorter than the posterior. Scales more or less strongly keeled, 

 in 17 rows. Ventrals 150-167; anal entire or divided; subcaudals 

 113-155. OlLve-brown above, uniform or with blackish cross- 

 bands enclosing round whitish spots, or with whitish black-edged 

 cross-bands ; upper lip whitish ; ventrals and subcaudals olive on 

 the sides, whitish, uniform or dotted or edged with olive, in the 

 middle. 



Total length 1020 millim. ; tail 420. 



From Mexico to Ecuador and the Guianas. 



a. Hgr. 6 (V. 160 ; 0. Mexico. M. SaU6 [C.l. 



123). 

 b-e. $ (V. 160, 167, 160 ; Vera Paz , low forest. 0. Salvin, Esq . rC.l 



0. 113, 139, 116) & 



yg.(V. 166; 0.145). 

 /. c? (V. 152 ; 0. 119). Guatemala. O. Salvin, Esq. rCl. 



g-h. ? (V. 160; 0. 128) Chiriqui. F. D. Godman, Esq. 



& yg. (V. 150; 0. [P.]. ^ 



150). 

 i. S (V. 156 ; 0. ?). Guayaquil. (Type of H. hrunneus.) 



k-m. d' (V. 162, 151, W. Ecuador. Mr. Eraser rCl. 



156; C. 117, 125,?) 



& ? (V. 157 ; 0. ?). 

 «.Yg.(V. 159; 0.140). Quito. 

 o.Yg.(V. 150; 0.155). Zaruma, Ecuador. J. F. Gunter, Esq. 



[0.]. 

 p. Yg. (V. 162 ; 0. 142). Venezuela. Mr. Dyson [C.]. 



q. Skull. Cayenne. 



7. Drymobius chloroticus. 



Dendrophidium chloroticum. Cope, Proc. Amer. Philos. Soc. xxiii 



1886, p. 278. 

 Drymobius chloroticus, Cope, Bull. U.S. Nat. Mm. no. 32, 1887 



p. 69; Bocourt, Miss. Sc. Mex., Rept. p. 718, pi. 1. fig. 7 (1890). ' 

 bruimeus (non Giinth.), Bocowt, I. c. pi. 1. fig. 6. 



Maxillary teeth not more than 25, posterior rather strongly 

 enlarged. Eostral broader than deep, visible from above ; inter- 

 nasals shorter than the preefrontals ; frontal hardly once and a half 

 as long as broad, as long as its distance from the end of the snout 

 a little shorter than the parietals ; loreal not or but slightly longer 



