110. TSOPIDODIPSAS. 295 



1. Tropidodipsas fasciata. 



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

 Leptognathus fasciata. Cope, Proc. Ac. Philad. 1868, pp. 109 & 137. 



(Tropidodipsas) subannulatus, F. Miill. Verh. nat. Ges. Basel, 



viii. 1887, p. 274, pi. i. tig. 5. 



Eye rather large. Rostral a little broader than deep, just visible 

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

 frontal a little longer than broad, as long as its distance from the 

 end of the snout, shorter than the parietals ; loreal as long as deep, 

 not entering the eye ; two prajoculars ; two postocukrs ; temporals 

 1 + 2 or 2 + 2; seven or eight upper labials, fourth and fifth 

 entering the eye, sixth or seventh largest; four or five lower 

 labials in contact with the anterior chin-shields, which are a little 

 longer than the posterior. Scales in 17 rows, dorsals feebly keeled. 

 Ventrals 171-176 ; anal entire ; suhcaudals 71-78. Dark brown 

 or black, with 20 to 38 white (red ?) or pale brown annuli, some of 

 which are complete, others broken up above and below and forming 

 alternating cross bars ; throat and a bar across occiput white or 

 pale brown. 



Total length 600 milHm. ; tail 140. 



Mexico. 



a-6. ? (V.176; C. 71) & ? Zoological Society. I 



yg. (V. 171 ; 0. 78). [ 



c. Hgr., bad state. Mexico. Mr. Hugo Finck [C], j 



(Types.) 

 2. Tropidodipsas philippli. 



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

 Leptognathus philippii, Jan, Elenco, p. 101 (1863), and Icon. Gin. 



37, pi. V. fig. 1 (1870). 

 albocinotus, Fischer, Jahrb. Hamb. Wisa. Anst. ii. 1885, p. 107, 



pi. iv. fig. 9. 



Eye rather large. Rostral a little broader than deep, just visible 

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

 frontal a little longer than broad, as long as its distance from the 

 end of the snout, shorter than the parietals ; loreal as long as 

 or slightly longer than deep, not entering the eye ; two praeoculars ; 

 two postoeulars ; temporals 1+2; seven upper labials, fourth and 

 fifth entering the eye, sixth largest ; six lower labials in contact 

 with the anterior chin-shields, which are more than twice as long 

 as the posterior. Scales in ] 6 rows, dorsals faintly keeled. Ventrals 

 178-180 ; anal entire ; suhcaudals 67-71. A series of large 

 roundish blackish-brown spots, separated by narrow whitish inter- 

 spaces, occupies the upper parts, the spots descending to the sides 

 of the belly ; upper lip white ; belly white, with a few dark brown 

 spots ; the dark brown predominates under the tail. 



Total length 330 millim. ; tail 80. 



Western Mexico, California (?). 



a. $ ("V. 180 ; C. 71). Mexico. (One of the tvpes of T. fasciata.) 



b. 5 (V. 178 ; C. 67). San Diego, California (?). " Dr. J. G. Fischer. 



(Type of L. albocinciits.) 



