On new or little-known South- American Frogs. 295 



B. Instrumento copulativo e duobus pedum paribus 

 formato. 



1. Numero segmentorum magno varioque, Fora- 



minibus repugnatoriis manifestis. 



(«) Mandibulis hand immiuutis Tulid(B. 



(b) Mandibulis imminutis Polyzonidce. 



2. Numero segmentorum semper triginta. Foram- 



inibus repugnatoriis evanidis Chordeumidcp , 



XXXVI. — Descriptions of new orlittle-hnoion South- American 

 Frogs of the Genera Paludicola and Hyla. By G. A. 

 BOULENGER. 



Paludicola nehulosa. 

 Litqjerus nebulosus, Burmeister, Reise La Plata, ii. p. 532 (1861). 



Tongue subcircular, indistinctly nicked behind. Vomerine 

 teeth none. Snout extremely short, much shorter than the 

 diameter of the eye, somewhat similar to that of Notaden 

 Bennetti] nostrils directed forwards; eye large ; interorbital 

 space about two thirds the width of the upper eyelid ; tym- 

 panum distinct, circular, measuring half the diameter of the 

 eye. Fingers short, depressed, first much longer than 

 second ; toes short, much depressed, webbed at the base, the 

 web extending as a fringe to their tips ; subarticular tubercles 

 small, of toes conical ; two very strong, compressed, sharp- 

 edged metatarsal tubercles, inner largest ; no tarsal tubercle ; 

 no tarsal fold. The hind limb being carried forwards along 

 the body, the tibio-tarsal articulation reaches the axilla ; tibia 

 little longer than the skull. Skin smooth ; no lumbar gland. 

 Pale brownish above, with small scattered blackish spots ; no 

 cross bars on the limbs. From snout to vent 40 millim. 



Mendoza. 



Described from the type specimen ( $ ) in the Berlin 

 Museum (no, 7374). 



Paludicola albifrons (Spix). 



Tongue small, elliptic, entire. Vomerine teeth none. 

 Snout rounded, as long as the orbital diameter ; nostril 

 nearer the tip of the snout than the eye ; interorbital space 

 as broad as the upper eyelid ; tympanum hidden. Fingers 

 moderate, first not extending quite as far as second ; toes 

 moderate, free, not fringed ; subarticular tubercles moderate, 



