17. BOEBOEOCffilES. 253 



1. Borborocoetes nodosus. 



Oystignathua nodosus, Bum. S; Bibr. p. 413 ; Ouichen. in Oay, Chile, 



Rept. p. 98. 

 Eusoplius nodosus, Cope, Nat. Hist. Sev. 1865, p. 113. 



Tongue circular, slightly nicked behind. Vomerine teeth, in two 

 small groups between the choanae. Snout short, rounded ; tympanum 

 indistinct. Fingers and toes moderate ; subarticular tubercles very 

 strong ; two small metatarsal tubercles. The hind limb being carried 

 forwards along the body, the foot extends beyond the snout. Scat- 

 tered small warts on the back ; a rather indistiuet parotoid gland 

 above the tympanum to the shoulder. Brown above, dotted with 

 black ; limbs cross-barred ; hinder side of thighs speckled with white ; 

 light brown beneath. 



Chili. 



2. Borboroccetes roseus. 



Oystignathus nodosus, Oiinth. Cat. p. 29. 

 Cystignathus roseus, Oiinth. I. c. p. 134. 

 Cystig-nathus roseus, Dmn. Sf JBibr. p. 414 ; Ouichen. in Gay, Chile, 



Sept. p. 99, pi. 7. f. 3 ; Espada, Viaj. Pacif., Vertebr. p. 73. 

 Borboroccetes roseus, Cope, Nat. Hist. Sev. 1865, p. 113. 

 ? Oystignathus syhestris, Tschwdi, Fami. Per. p. 66, pi. 11. f. 1 ; 

 Peters, Mon.. Be^-l. Ac. 1873, p. 023. 



Tongue subcircular, entire. Vomerine teeth in two oblique series 

 commencing on a level with the hinder edge of the choaiise. Snout 

 rounded, slightly longer than the greatest orbital diameter; nostril 

 equally distant from the eye and the tip of the snout ; iriterorbital 

 space as broad as the upper eyelid ; tympanum slightly distinct. 

 Pingers moderate, iirst not extending beyond second ; toes moderate, 

 with a slight rudiment of web ; subarticular tubercles not much 

 developed ; a small inner, and an indistinct outer metatarsal tubercle. 

 The hind limb being carried forwards along the body, the tibio- 

 tarsal articulation reaches the eye. Skin smooth, the upper surfaces 

 distinctly porous. Brownish ^ above, indistinctly marbled with darker ; 

 a light dorsal stripe. 



Chili. 

 a. ? . Chili. 0. Darwin, Esq. [P.l. 



J. Yg. S. America. 0. Darwin, Esq. [P.J. 



3. Borboroccetes hidalgi. 



Oystignathus hidalgoi, Espada, Viaj, Pacif., Vertebr, p. 76. 



Tongue circular, nicked behind. Vomerine teeth in two nearly 

 straight series between the choanas. Snout rounded ; tympanum 

 distinct, vertically elliptic, half the diameter of the eye. First finger 

 as long as second ; toes fringed, with a rudimentary web ; subarti- 

 cular tubercles moderate. The hind limb being carried forwards 



