1897.] 



BATRACHIATfS fROM NOE'rHBEN KYASALAKD. 



801 



Lygosoma johnstoni, sp. n. (Plate XL VI. fig. 1.) 



Section Riopa, Gray. Body much ' elongate, angiiiform ; limbs 

 minute, anterior monodactyle, posterior didactyle. Snout moderate, 

 obtuse. Lower eyelid with an undivided transparent disk. Supra- 

 nasals present, in contact behind the rostral ; fronto-uasal much 

 broader than long ; prsef rontals forming a median suture ; frontal 

 nearly twice as long as broad, as long as its distance from the 

 nuchals, in contact with the first, second, and third supraoculars ; 

 four supraoculars ; six supraciliaries ; frontoparietals and inter- 

 parietal distinct, subequal in size ; parietals in contact behind the 

 interparietal; a pair of nuchals ; fifth upper labial below the centre 

 of the eye. Ear-opening large, oval, with two projecting lobules 

 anteriorly. 22 smooth scales round the body. Fore limb half as 

 long as the posterior ; digits minute, with short blunt claws. Tail 

 long, tapering to a fine point. Dark olive above, greenish white 



