. new Genus of Frogs. 43 



rior attachment. Palatine teeth forming a h^ng transverse 

 series narrowly interrupted in the middle. Two denticuhite 

 transverse dermal folds in front of the pharynx. Tympanum 

 hidden. Fingers free, toes webbed at the base, the tips not 

 dilated ; outer metatarsal bound together. Coracoids strong ; 

 pr^coracoids very weak, ligamentous ; no omosternuin ; 

 sternum a large cartilaginous plate. Diapophyses of sacral 

 vertebra moderately dilated. 



Colpoglossus Broohsii. (PI. IT.) 



Habit very stout ; head strongly depressed, once and two 

 thirds as broad as long; eye small, interorbital width three 

 times the width of the upper eyelid. Fingers short, obtusely 

 pointed, first shorter than second ; subarticular tubercles 

 indistinct ; a large, oval, inner metacarpal tubercle. Toes 

 short, blunt, with a very short basal web ; subarticular 

 tubercles feebly prominent j a rather large and very promi- 

 nent inner metatarsal tubercle. The tarso-metatarsal articu- 

 lation reaches the eye. Skin of head and body granulate, of 

 belly and limbs smooth. Yellowish above, elegantly marked 

 witii dark brown lines, which form a network on tlie sides 

 and limbs; a )-( shaped dark brown, light-edged marking 

 on the head and nape, each of the longitudinal branches 

 bifurcating in front and behind ; two chains of small black 

 spots, some with light centre, along the middle of the back ; 

 lower parts white, throat with wrinkle-like transverse brown 

 lines. 



From snout to vent 50 mm. 



A single specimen from Bidi, Sarawak, discovered by 

 Mr. Cecil J. Brooks in a hole whilst prospecting, and pre- 

 sented by him to the British Museum. 



The discovery of a member of the family Dyscophidai in 

 Borneo is a very important addition to our knowledge, all 

 the members of this natural group being inhabitants of Mada- 

 gascar, with the exception of the Burmese Calluella yuttulata. 

 So many genera and species have been added to this family 

 since the publication of the British Museum Catalogue (1882) 

 that a complete list, such as is here appended, will be welcome 

 to herpetologists and to students of geographical distribution. 



I. Pupil vertical ; palatine teeth in long transvei-se series. 

 A. Pra;coracoids ossified ; tips of fingers and toes not dilated. 

 a. Sternum large. 

 ]. Dyscophus, Grand. 1872. —Madagascar. 



1. insularis, Grand. 1872, 



2. Gnweti, Grand. 1875. 



o. Aatonijllii, (irand, 1877. 



