113. GEOPHxs. 323 



Maxillary not extending beyond palatine in front, the first tooth 

 corresponding to the suture l)et\veen the second and thii-d labial 

 shields. Eye verj' small, its length about two thirds its distance 

 from the mouth. Snout obtusely pointed, very prominent. Rostral 

 rather large, as deep as broad, or a littlo deeper than broad, the 

 portion visible from above measuring at least two thirds its distance 

 from the frontal ; interuasals often fused with the pra^frontals * ; 

 fi'ontal as long as broad or slightly broader than long, as long as or 

 a little longer than its distance from the end of the snout, a little 

 shorter than the parietals ; a very small supraocular ; loreal once 

 and a halt' to twice as long as broad ; one postocular ; six upper 

 labials, tiiird and fourth entering the eye ; three or four lower labials 

 in contact with the anterior chin-shields, which are as long as or a 

 little longer than the posterior and separated from the symphysial. 

 Scales in 17 rows, perfectly smooth, a few at the base of the tail 

 with faint traces of keels. Ventrals 134-14(3 ; anal entire ; sub- 

 caudals 43-48. Uniform dark brown or blackish above, yellowish 

 white beneath. 



Total length 340 millim. ; tail 60. 



Mexico. 



a-b. S (V. 1.S4 ; C. 48) & Mexico. M. Sall6 [C.]. 



5 (V. 146; C. 43). 

 c. IJgr. cf (V. 141 ; C. 48). Jalapa. Dr. J. G. Fischer. 



(Type of G.fuscns.) 



13. Geophis rostralis. 



Elapoides rostralis, Jan, Icon. Gen. 12, pi. ii. fig. 2 (1865). 

 Geophis dubius, Bocourt, Miss. Sc. Me.v., Rept. p. 5.32, pi. xxxi. 



fig. 9 (1883). 

 rostralis, Bocourt, I. c. p. 533, pi. xxxi. fig. 10 ; Gunth. Biol. 



C.-Am., Rept. p. 89 (1893). 

 Rbabdosoma rostrale, Cope, Bull. U.S. Nat. Mus. no. 32, 1887, 



p. 85. 



Maxillary not extending beyond palatine in front, the first tooth 

 corresponding to the suture between the second and third labial 

 shields. Eye very small, its length about two thirds irs distance 

 from the mouth. Snout obtusely pointed, very prominent. Eostral 

 rather large, as deep as broad, the portion visible from above measur- 

 ing at least two thirds its distance from the frontal ; the internasals 

 may be fused with the prsefrontals t ; frontal slightly broader than 

 long, as long as its distance from the end of the snout, a little shorter 

 than the parietals ; a very small supraocular ; loreal once and a half 

 to twice as long as deep ; one postocular, sometimes fused with the 

 supraocular ; six upper labials, third and fourth entering the eye ; 

 anterior chin-shields longer than the posterior, in contact with the 



* In spec, a the internasals are distinct ; in b the left internasal is fused 

 with the prwfrontal ; in c the internasals are no longer distinguishable. 

 t As in the spociuien in the Culiei'tion. 



