CADUCIBRANCHIATA. 77 



broad ; muzzle obtuse ; sphenoidal teeth in two groups 

 contiguous in front and diverging behind; gular fold 

 very distinct; body short and thick, with well marked 

 costal furrows ; skin otherwise smooth ; thumb and first 

 toe rudimentary ; limbs short, anterior reaching almost 

 to the eye, posterior scarcely longer ; tail very short. 

 Length 3.1 inches. Breadth of head 3.3 lines. 



Tail 1.5 " 



Habitat Bogota. 



A variety of G. carbonarius t 



By an examination of an impregnated female, Peters 

 (15, c) discovered developed eggs of nearly j.y 2 lines in 

 diameter, and thence concluded that a copulation had 

 taken place, and that they were viviparous. 



6. Geotriton altamazonicus, Cope. 



Synonyms, Oedipus altamazonicus, Cope. 



Color uniform dark brown ; head elongate, oval ; 

 width less than one-sixth the length to groin ; muzzle tu- 

 mid emarginate; nostrils small, piercing each tumidity; 

 vomerine teeth in contact medially, and outwardly limit- 

 ed by the inner nares; sphenoidals numerous in two 

 patches, contiguous in front; costal furrows thirteen; 

 dorsal longitudinal groove present ; body slender ; limbs 

 weak, thin, and as well as the appressed feet, extending 



