282 On new West- African Frog a. 



oiLif, with obtuse cantlii and nearly vertical, concave lores; 

 interorbital space as broad as the upper eyelid ; t3'-mpanum 

 iinoderately distinct, barely half the diameter of the eye. 

 Fingers moderately el-)ngate, much depressed, Avith large, 

 cordiform terminal disks ; first finger shorter than second ; 

 toes rather short, broadly webbed to the disks, which are a 

 little smaller than those of the fingers ; subarticular and 

 inner metatarsal tubercles feebly prominent. The tibio-tarsal 

 articulation reaches to between the eye and the tip of the snout ; 

 tibia half as long as head and body ; foot about two filths 

 length of head and body. Up])er parts closely covered with 

 round granules intermixed with elongate warts; lower parts 

 smooth. Male with internal vocal sacs, a sharp tooth-like 

 process at the symphysial extremity of each ramus of the 

 mandible, and a more or less distinct large oval gland on the 

 lower side of the thigh. Olive-brown above, with round 

 darker spots on the body and cross-bars on the limbs ; lower 

 parts brown. 



From snout to vent 55 mm. 



Several specimens from Sierra Leone, presented to the 

 British Museum by Major F. Smith, R.A.M.C. 



IMajor Smith informs me the specimens were taken from a 

 mountain torrent in a rocky bed at an altitude of 800 feet, 

 "i'hc frog is a jwwerf'ul swimmer and jumper, and clings to 

 rocks, roots of trees, &c. by means of its digital disks. 



Petrojyedetes palmipes. 



Tongue rather feebly notched behind, with a conical papilla 

 in the middle. Vomerine teeth in two short transverse or 

 oblique series behind the level of the choana3. Head strongly 

 depressed, as long as broad; snout obtusely pointed, a little 

 shorter than the orbit, with obtuse canlhi and very oblique 

 concave lores; interorbital space narrower than the ujjper 

 eyelid ; tympanum rather indistinct, about one third the 

 diameter of the eye. Fingers rather elongate, with large, 

 cordiform terminal disks; first finger shorter than second; 

 toes moderately elongate, webbed to the disks, which are a 

 little smaller than those of the fingers; subarticular and iimer 

 metatarsal tubercles feebly prominent. The tibio-tarsal 

 articulation reaches beyond the tip of the snout ; tibia three 

 fifths to two thirds as long as head and body ; foot nearly 

 half as long as head and body. Skin shagreened or glaiulular 

 above; a more or less distinct glandular line along the 

 middle of the iiead and body; lower parts smooth. Male 

 with internal vocal sacs and a well-defined large oval gland 



