idG On new Frogs fvom German East Africa. 



LIX. — Descriptions of Three new Frogs discovered hy Dr. P. 

 Krefft in Usambara, German Fast Africa. By G. A. 

 BoULENGEIi, F.R.S. 



(Published by permission of the Trustees of the British Museum.) 



Ph rynohatrachus krofflii. 



Tongiie with a conical papilla in the middle. Habit mode- 

 rately stout. JSuout shortj rounded, scarcely projecting- 

 beyond the mouth; canthus rostralis indistinct; loreal region 

 slightly concave; nostril equally distant trom the eye and 

 from the end of the snout ; interorbital space as broad as the 

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

 the eye. Fingers moderately long, first shorter than second ; 

 toes moderate, two-thirds webbed ; tips of fingers and toes 

 dilated into small disks ; subarticular tubercles small, feebly 

 prominent ; a small, narrow, feebly prominent inner metatarsal 

 tubercle. The tibio-tarsal articulation reaches the nostril. 

 Skin smooth. Brown above, with darker spots ; a blackish 

 cross-bar between the eyes, light-edged in front ; limbs with 

 rather indistinct dark cross-bands ; lower parts whitish, belly 

 and lower surface of limbs dotted with brown ; a brown band 

 across the throat ; lower jaw edged with dark brown. Male 

 with internal vocal sacs. 



From snout to vent 40 mm. 



Amani. 



Arthroleptis xenodactylus. 



Tongue without conical papilla. Head moderate, as long 

 as broad ; snout rounded, as long as the eye, with obtuse 

 canthi and nearly vertical lores ; nostril equally distant from 

 the eye and from the end of the snout ; interorbital space 

 much broader than the upper eyelid ; tympanum perfectly 

 distinct, half the diameter of the eye. Fingers and toes 

 moderate, dilated into small disks, which are produced into a 

 short mucro, as in Sooglossus seckellensis, Boettg. ; first finger 

 shorter than second ; toes with a slight rudiment of web ; 

 subarticular tubercles moderate ; a small inner metatarsal 

 tubercle; no tarsal tubercle. The tibio-tarsal articulation 

 reaches between the eye and the tip of the snout. Brown 

 above ; loreal region dark brown ; lower parts white, finely 

 speckled with brown. 



From snout to vent 17 mm. 



Amani. 



