56 MK. G. A. BOULENGER ON THE EEPTILES 



Several specimens were collected by Mr. Guppy in the Shortland, Treasury, and 

 Faro Islands. 



This species comes near Cornufer corrugatus, A. Dum., from the Philippines, New 

 Guinea, and Duke of York Island. It differs in the larger head, the larger eyes, the 

 shorter hind limbs, and the still stronger subarticular tubercles of the fingers and toes. 



C EEATOBATEACHID^. 



Ceratobatrachidm, Bouleng. Proc. Zool. Soc. 1884^ p. 212. 



Both jaws toothed ; diapophyses of sacral vertebra not dilated. 



Cekatobatrachus, Blgr. 

 Ceraiobatrachus, Bouleng. 1. c. 



Pupil horizontal. Tongue deeply notched and extensively free behind. Vomerine 

 teetli. Head large, skull strongly ossified. Tympanum distinct. Fingers and toes 

 free, with non-dilated tips. Outer metatarsals united. Precoracoids present ; omo- 

 sternum and sternum with a bony style. Distal phalanges simple. 



7. Ceeatobateachus guentheei. (Plates XII. & XIII.) 

 Ceratoiatrachus guentheri, Bouleng. 1. c. 



The tongue is large, attached on the anterior half of the median line, subcordiform, 

 notched posteriorly, in every respect like that of Rana. The teeth in the upper jaw 

 are minute, closely set, as in Batrachians generally ; those in the lower jaw are larger, 

 conical, acute, slightly directed backwards, and inserted on the edge of the mandible, 

 leaving their impressions on the mucous fold which borders the upper jaw. The 

 vomerine teeth form two short, transverse, sometimes crescentic, series inserted on the 

 hinder border of a triangular base which is situated at the posterior inner edge of the 

 choanse. The latter are rather large, their vertical diameter exceeding the horizontal, 

 but smaller than the Eustachian tubes, which are very large. 



The head is enormous, strongly depressed, triangular, broader than long ; its length 

 is contained once and two fifths to once and three fifths in the length of the body ; the 

 length of the snout equals once and one fourth to once and one third the diameter of 

 the orbit ; the end of the snout forms a gentle slope and does not project ; the canthus 

 rostralis forms a distinct straight ridge bounding the slightly concave frontal region ; 

 the loreal region is very oblique and concave ; the nostril is twice as far from the eye as 

 from the tip of the snout. The eye is moderately large ; the interorbital space, which 

 is much wider than the upper eyelid, is deeply concave and its borders form a slightly 

 prominent ridge. The tympanum is large and distinct, vertically elliptic, nearly as 

 large as the eye ; below the tympanum, at the angle of the mouth, there is a small 



