1894.] FISHES FROM B. AFRICA. 85 



these will be fully explained in his forthcoming itinerary of his 

 expedition \ Besides, he discovered two new forms, one of the 

 polytypic genus Agama, and the other a singular new genus of 

 Geckoids. Several of the species had been previously known from 

 one or two other localities only : the Egyptian Dipsas obtusa has 

 been discovered by him to extend southwards to tbe Equator, and 

 the West-African Hemidactyhis brooJcii proves to be one of those 

 which extend right across the Continent. This is also the case 

 with Dermophis thomensis, one of the seven Batrachians collected 

 by Dr. Gregory. 



So far as we know at present, some of the genera of Fishes 

 inhabiting Tropical Africa, like Chromis and Barbus, preponderate 

 over the others as regards the number of species. Not only are 

 the various fresh waters inhabited by distinct local forms of the 

 genera mentioned, but almost every piece of fresh water harbours 

 several species of the same genus. Six out of the thirteen species 

 of which specimens have been collected by Dr. Gregory are new, 

 and my examination of them has been greatly facilitated by the large 

 size of the specimens and the excellent state of their preservation. 



REPTILES. 



1. Testudo pardalis. On the Kikuyu escarpment south of 

 Lake Naivasha. 



2. Cestyxis belliaka, Gray. East of Taro, west of Witu. 



3. Sternotbjertts sinuatus, Smith. Upper Athi B. 



4. Pelomebusa galeata, Schoepff. Kapte Plains, Ukambani, 

 alt. 3300 ft. 



5. Hemibactylus mabuia, Moreau. Ngatana. 



6. Hemibactylus brookii, Gray. Kibibi Basin. 

 Hitherto known from various localities on the "West Coast. 



Bunocjstemis, g. n. Geckot. 



Body and tail covered with small, smooth, imbricate scales. 

 Digits aud toes free, with the terminal phalanges short and 

 clawed, those of the digits being much shorter than those of the 

 toes. The lamellae on the lower side of the fingers and toes are 

 mostly undivided, though many have a more or less shallow notch 

 in their anterior margin. A complete division takes place only in 

 the lamellae of the outer toe and in the penultimate lamella of the 

 other toes. The hinder part of the legs with large tubercles. 

 Praeanal pores. Pupil vertical. 



7. Buntjcxemis modestus, sp. n. (Plate VIII.) 



Snout rather depressed, moderately long, longer than the 

 1 Geogr. Journ. vol. iii. (1894). 



