deeper than broad, the portion visible from above measuring three 

 fourths its distance from the frontal ; internasals broader than long, 

 half as long as the praofrontals, which are a little longer than broad ; 

 frontal nearly as long as broad, as long as its distance from the end 

 of the snout, a little shorter than the parietals ; a small supraocular ; 

 loreal twice as long as deep ; one postocular ; six upper labials, 

 third and fourth entering the eye ; three lower labials in contact 

 with the anterior chin-shields, which are not longer than the pos- 

 terior and separated from the symphysial. Scales in 15 rows, all 

 perfectly smooth. Ventrals 125 ; anal entire ; subcaudals 33. 

 Uniform iridescent black above; ventrals and subcaudals whitish 

 edged with blackish. 



Total length 250 millim. ; tail 40. 



Panama. 



a. c? (V. 125; C. 33). Chiriqui. J. G. Champion, Esq.JjCJ; 



F. D. Godman, Esq. 



11. Geophis godmani. (PLATE XVI. fig. 4.) 

 Geophis chalybsea, part., Giinth. Biol. C.-Am., Kept. p. 87 (1893). 



Maxillary not extending beyond palatine in front, the first tooth 

 corresponding to the suture between the second and third labial 

 shields. Eye small, a little shorter than its distance from the 

 mouth. Snout obtusely pointed, very prominent. Rostral rather 

 large, slightly deeper than broad, the portion visible from above 

 measuring two thirds or three fourths its distance from the frontal ; 

 internasals a little broader than long, half as long as the prsefrontals, 

 which are a little longer than broad ; frontal as long as broad, as 

 long as or a little shorter than its distance from the end of the 

 snout, shorter than the parietals ; no supraocular ; prarfrontal forming 

 a narrow suture with the parietal between the frontal and the eye ; 

 loreal once and a half as long as broad ; a minute postocular ; six 

 upper labials, third and fourth entering the eye ; three lower labials 

 in contact with the anterior chin-shields, which are not longer than 

 the posterior and separated from the symphysial. Scales in 15 

 rows, all perfectly smooth. Ventrals 144-145 ; anal entire ; sub- 

 caudals 27-28. Uniform blackish brown above, yellowish beneath ; 

 a few transverse brown blotches under the tail, sometimes also on 

 the belly. 



Total length 400 millim. ; tail 55. 



Costa Rica. 



a-b. $ (V. 146 ; C. 28) & Irazu, Costa Rica. O. Salvin & F. D. God- 

 hgr. (V. 144 ; C. 27). man, Esqrs. [P.]. 



12. Geophis dubius. 



Geophidium dubium, Peters, Man. "Deri. Ac. 1861, p. 923. 



Geophis ftiscus, Fischer, Abh. naturw. Ver. Hamo. ix. 1886, p. 11, 



pi. ii. fig. 5. 

 chalybaea, part., Giinth. Biol. C.-Am., Kept. p. 87 (1893). 



