L M J(J COLUBRIDJE. 



3. Tropidodipsas fischeri. 



Virginia fasciata, Fischer, Jahrl. Hamb. Wits. Anst. ii. 1885, p. 95. 

 Klajmidcs lasciatus, Cope, Hull. 77.6'. Nat. Mus. no. 32, 1887, p. 85. 

 Tropidoclonium anuulatuui, Bocourt, Le Natur. 1892, p. 132, and 



Miss. Sc. Mex., Kept. p. 738, pi. liv. tig. 3 (1893). 

 Geoplm fasciuta, Gunth. Biol. C.-Amer., llept. p. 93, pi. xxxiv. 



fig. A (1893). 



Eye moderate. Rostral a little broader than deep, just visible 

 from above ; internasals two fifths the length of the proefrontals ; 

 frontal as long as or a little longer than broad, as long as its 

 distance from the end of the snout, shorter than the parietals ; 

 loreal once and two thirds or twice as long as deep, entering the 

 eye, with a pneocular above it ; two postoculars ; temporals 1 + 2 ; 

 six upper labials, third and fourth entering the eye, fifth largest ; 

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

 are twice as long as the posterior. Scales in 17 rows, dorsals feebly 

 keeled. Ventrals 174-196 ; anal entire ; subcaudals 51-59. 

 Brownish grey above, with numerous black cross bars, which 

 expand into rhomboidal blotches on the back, and descend as 

 narrow bars to the sides of the belly, some of the anterior forming 

 more or less complete annuli ; head black above, lips white ; lower 

 parts white, with a few black spots on the belly and numerous 

 ones under the tail. 



Total length 540 millim. ; tail 110. 



Guatemala. 



a. c? (V. 180; C. 67). Guatemala. Stuttgart Mus. [E.]. 



(One of the types.) 



4. Tropidodipsas sartorii. 



Tropidodipsas fasciata, part., Gilnth. Cat. p. 181 (1858). 



sartorii, Cope, Proc. Ac. Philad. 1863, p. 100. 



Leptognathus dumerilii, Jan, Elenco, p. 101 (1803), and Icon. G6n. 37, 



pi. v. fig. 2 (1870). 



sartorii, Cope, Proc. Ac. Philad. 1868, pp. 109 & 137. 



Geophis annulatup, Peters, Mon. Berl. Ac. 1870, p. 643, pi. i. f. 2 ; 



f. Mull. Verh. not. Ges. Basel, vi. 1878, p. 409. 

 Galedon annularis, Jan, Icon. G6n. 36, pi. v. %. 1 (1870). 

 Leptognathus sexscutatus, Bocourt, Bull. Soc. Philom. (7) viii. 1884, 



p. 1:57. 



leucostomus, Bocourt, 1. c. p. 138. 



(Tropidodipsas) bernouillii, F. Mull. J'erh. nat. Ges. Basel, viii. 



1887, p. 272, pi. i. %. 3. 

 (Tropidodipsas) cuculliceps, F. Mull. I. c. p. 273, pi. i. fig. 4. 



Eye moderate. Rostral a little broader than deep, just visible 

 from above ; internasals half the length of the prajfrontuls ; frontal a 

 little broader than long, a little shorter than its distance from the 

 end of the snout, much shorter than the parietals ; loreal short and 

 separated from the eye by the prococulars, or fused with the lower 

 pra-ocular; two postoculars ; temporals 1 + 2; seven or eight upper 

 labials (exceptionally six), fourth and fifth or fifth and sixth entering 

 the eye, sixth largest ; five lower labials in contact with the anterior 

 chin-shields, which are twice as long as the posterior. Scales in 17 

 rows, dorsals feebly keeled. Ventrals 170-190 ; anal entire ; sub- 



