17. BOEBOEOCCEl'ES. 255 



above (with white markings on the flanks and limbs IBell] ). Male 

 with an internal vocal sac. 

 Valdivia. 



"■ <S ■ Valdivia, C. Darwin, Esc^. [P.]. (Type.) 



6. Borborocoetes bibronii. 



Oystignathus hibronii, Oiinth. Cat. p. 31. 

 Borboroccetes bibronii, Sell, Zool. Beagle, Eept. p. 37, pi. 17. f . 1 ; 

 Guichen. in Gay, Chile, Eept. p. 105. 



Tongue subcircular, entire. Vomerine teeth in two small groups 

 behind the choana3. Snout rounded, a little longer than the greatest 

 orbital diameter ; nostril equally distant from the eye and the tip of 

 the snout ; intororbital space broader than the upper eyelid ; tym- 

 panum moderately distinct, hardly half the diameter of the eye. 

 Fingers moderate, first not extending beyond second j toes moderate, 

 webbed at the base ; subarticular tubercles not much developed ; 

 a small inner metatarsal tubercle. The hind limb being carried 

 forwards along the body, the tibio-tarsal articulation reaches the tip 

 of the snout. Skin smooth. Brownish above. 



Valdivia and Chiloe. 



a. 2 . - Chonos. C. Darwin, Esq. [P.]. (Type.) 



7. Borborocoetes quixensis. 



Oreobates quixensis, JEspada, An. Soc. Esp, i. p. 88, and Viaj. Pacif., 

 Vertebr. p. 99, pi. 3. f. 5. 



Tongue subcircular, indistinctly nicked behind. Vomerine teeth 

 in two short straight series behind the choanse. Snout rounded, 

 longer than the greatest orbital diameter ; nostril much nearer the 

 tip of the snout than the eye ; interorbital space as broad as the 

 upper eyelid; tympanum very distinct, two thirds the diameter of 

 the eye. Fingers moderate, first longer than second ; toes moderate, 

 not fringed ; subarticular tubercles very strong ; two very prominent 

 metatarsal tubercles. The hind limb being carried forwards along 

 the body, the tibio-tarsal articulation reaches between the eye and 

 the tip of the snout. Upper surfaces with closely-set tubercles and 

 small warts. Greyish above, indistinctly marbled with darker; 

 upper lip with vertical brown stripes ; limbs cross-barred ; lower 

 surfaces marbled with brown. Male without vocal sac. 



Ecuador. 



a-b. . c? $ . Canelos. Mr. Buckley [0.1. 



c^d. (J . Sarayacu. Mr. Buckley [C.]. 



8. Borborocoetes peruanlis. 



Pbrynopus psruauus, Eeteis, Mon. Berl. Ac. 1873, p. 416, pi. 4. f. 2. 



General appearance of Paludicola marmorata, but with shorter 



