6. TBIMATOBltrS. 191 



Toes half webbed ; tibio-tarsal articulation 



reaoMng in front of the eye ~. . . 5. pustdosus, p. 192. 



Toes shortly webbed ; no metatarsal tubercle 6. angustipes, p. 192. 



1. Telmatobius peruvianus. 



TelmatoMus peruvianus, Giinth. Cat. p. 42. 

 Telmatobiua peruvianus, Wiegm. Nov. Act. 1835, p. 262, pi. 22. f. 2 ; 

 Peters, Mon. Berl. Ac. 1878, p. 413, pi. 2. f. 3. 



Vomerine teeth none. Snout short, rounded ; no tympanic disk. 

 Toes incompletely webbed. Above with many very small horny 

 warts. Above brown, with a darker longitudinal band, anteriorly 

 crossed by two transverse streaks. Male without vocal sac, with 

 blackish rugosities on the inner side of the first finger. 



Peru. 



2. Telmatobius semaricus. 



Cyclorhamphus semaricus, Cope, Proc, Ac. Philad. 1874, p. 125, and 

 Proe. Amer. Philos. Soc. xvii. 1877, p. 39. 



Vomerine fasciculi minute, between the small choanse. No tym- 

 panic disk. Toes half webbed ; a free border on the inner side of 

 the tarsus and outer side of outer toe. The hind limb being carried 

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

 the angle of the mouth. Skin smooth, except a few small tubercles 

 on the occipital region ; labial integument largely free and over- 

 hanging the lower jaw. Colour oUve-brown above, lighter brown 

 below ; sometimes a few scattered yeUow spots above. Male with 

 numerous small- homy points on the breast, and a large rugose plate 

 on each thumb. 



Peru. 



3. Telmatobius jelskii. 



Pseudobatrachua jelskii, Peters, Mon. Berl. Ac. 1873, p. 415. 

 ? Cyclorhamphus culeus, Garman, Bull. Mms. Comp. Zool. iii. p. 276, 

 pi. 1. 



Vomerine teeth in two small groups between the choanse ; the 

 latter relatively smaller than in T. marmoratiis. Snout short, 

 rounded ; interorbital space broader than the upper eyelid. Tym- 

 panum small, hidden. Fingers blunt, first extending beyond second ; 

 toes blunt, nearly entirely webbed ; subarticular tubercles small, a 

 small oval inner, and a flat rounded outer metatarsal tubercle. The 

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

 articulation reaches the eye, or nearly so far. Skin smooth, glan- 

 dular and distinctly porous above. Upper surfaces blackish oUve ; 

 lower surfaces yellowish, marbled with brown. Male Avithout vocal 

 sac ; during the breeding-season the inner side of the first finger is 

 covered with blackish rugosities. 



Peru; Ecuador. 



