94 cceciliid^e. 



Teeth moderately large ; on each side — maxillaries 6 to 8, vomero- 

 palatines 5, outer mandibulars 6 or 7 ; inner mandibulars very- 

 small, few. Snout rounded, prominent, shorter than the distance 

 between the eyes ; latter visible ; tentacle below the nostril. Body 

 cylindrical, elongate, robust ; 135 to 150 circular grooves, inter- 

 rupted on the dorsal and abdominal lines ; the last 40 or 50 are not 

 interrupted on the dorsal line, and the hindermost are complete. 

 Tail indistinct, rounded. Blackish brown, marbled with white 

 beneath. Total length 590 millim. ; greatest diameter of body 20 

 millim. 



Surinam. 



a. Adult. ? Named by Dr. Shaw. 



h. Hgr. Surinam. 



2. Coecilia isthmica. (Plate VI. fig. 1.) 



Coecilia rostrata, G tenth. Proc. Zool. Soc. 1859, p. 417. 



■ isthmica, Cope, Proc. Amer. Philos. Soc. 1877, p. 91. 



giintheri, Peters, Mon. Berl. Ac. 1879, p. 93(3. 



pachynema, Bouleng. Bull. Soc. Zool. France, 1880, p. 48. 



Teeth moderately large ; on each side — maxillaries 11, vomero- 

 palatines 5, outer mandibulars 8 ; inner mandibulars very small, 

 few. Snout truncate, very prominent, shorter than the distance 

 between the eyes ; latter visible ; tentacle below the nostril, on the 

 lower face of the snout. Body cylindrical, elongate, robust ; 124 

 circular folds*, interrupted on the dorsal and abdominal lines, the 

 last eighteen complete. Tail indistinct, rounded. Olive-brown, 

 lighter beneath, uniform ; lips whitish. Total length 660 millim. ; 

 greatest diameter of body 21 millim. 



Isthmus of Darien ; W. Ecuador. 



a. Adult. W. Ecuador. Mr. Eraser [C.]. 



3. Coecilia ochrocephala. 



Coecilia ochrocephala, Cope, Proc. Ac. Philad. 1866, p. 182. 



Proportions near those of Dernwphis mexicanus ; length 51 

 times the diameter at middle. Head narrowed ; snout decurved, 

 not truncate, projecting acutely beyond mouth ; eyes not visible ; 

 tentacle a little below the angle of the snout. Circular folds 200, 

 equidistant, complete above and below. Tail obtuse, depressed. 

 Yellowish plumbeous : the plicae dark ; throat and head ochre-yellow. 

 Total length 325 millim. 



Panama. 



4. Coecilia polyzona. 



'ischer, Mon. Berl. Ac. 

 i. 215, pi. 8. f. 1-4. 



Maxillary teeth (on each side) 11 or 12, vomero-palatines 10 or 11, 



Coecilia polyzona, Fischer, Mon. Berl. Ac. 1879, p. 937, and Arch, 

 f. Natury. 1880, p. 215, pi. 8. f. 1-4. 



* 142 in the type, 116 in a specimen in the Brussels Museum. 



