438 MB. G. A. BOTXLENGER ON THE [May 8, 



diameter of the orbit; canthus rostralis distinct; loreal region 

 deeply concave ; nostril midway between the eye and the end of 

 the snout ; interorbital space nearly as broad as the upper eyelid ; 

 tympanum distinct, two-thirds or three-fourths the diameter of 

 the eye. Fingers moderate, obtusely pointed, first not extending 

 beyond second ; toes broadly webbed, the web reaching the 

 extremity of the third and fifth toes, but leaving two phalanges of 

 the fourth toe free ; subarticular tubercles moderate ; a very 

 small, oval, inner metatarsal tubercle, no outer tubercle. The 

 tibio-tarsal articulation reaches far beyond the tip of the snout ; 

 tibia more than two-thirds the length of head and body. Skin 

 more or less distinctly granular above, with numerous, interrupted, 

 glandular, longitudinal folds on the back; a glandular fold from 

 beneath the eye to the shoulder. Olive-brown above, with small 

 dark spots, with or without a broad whitish or pink vertebral band ; 

 usually a dark cross-bar between the eye ; a black canthal streak 

 and a black temporal spot ; tympanum reddish brown ; limbs with 

 dark cross-bars ; hinder side of thighs black, spotted or marbled 

 with white or pink ; a series of black spots on the lower jaw ; 

 throat and belly yellow, immaculate. Male with two black 

 external vocal vesicles projecting through two slits below the 

 lower jaw. 



From snout to vent 50 millim. 



Five specimens from the Benito Biver are in Mr. Bates's col- 

 lection. Dr. Werner's specimens were from Camaroons. 



Closely allied to R. mascareniensis ; differs in the more exten- 

 sively webbed toes and the more numerous, interrupted folds along 

 the back. 



14. BaNA MASCARENIENSIS D. & B. 



Hub. Egypt, Tropical Africa, Seychelles, Madagascar, Mascarenes. 



The Gaboon specimens belong to the var. bibronii Hallow. 

 (superciliaris Gthr.), with longer snout and longer hind limbs. 

 The head is longer than broad, and the tibio-tarsal articulation 

 reaches beyond the end of the snout. 



15. Eana albolabris Hallow. 



Hab. Fernando Po, Camaroons, Gaboon, Lower Congo. 



Females grow to a length of 93 millim. from snout to vent. In 

 such large specimens the dorso-lateral glandular fold becomes 

 more indistinct, the tibio-tarsal articulation reaches the eye or 

 between the eye and the end of the snout, the first finger does 

 not extend beyond the second, and the white border to the upper 

 lip, whence the species derives its name, disappears more or less 

 completely. 



Scotobleps, g. n. 



Pupil vertical. Tongue free and deeply notched behind. 

 Vomerine teeth. Tympanum distinct. Fingers free ; toes 

 webbed. Outer metatarsals narrowly separated by web. Omo- 





