92 RANTDJi;. 



4. CHIROMANTIS. 



Chiromantis, Peters, Arch. f. Nature/. 1855, p. 56 j Giinth. Cat. p. 84; 



Coiye, Nat. Hist. Bev. 18(35, p. 11(3. 

 Potypedates, sp., GiintJi. Proc. Zool. Soc. 1868, p. 436, 



Pupil horizontal. Tongue free and deeply notched behind. Vo- 

 merine teeth. Tympanum distinct. Pingers more or less webbed, 

 the two inner opposite to the two outer ; toes webbed ; tips of 

 fingers and toes dilated. Outer metatarsals separated by web. 

 Omosternum and sternum with a bony style. Terminal phalanges 

 obtuse. 



Tropical Africa. 



This genus closely approaches the preceding, from which it differs 

 in the curious disposition of the fingers, the two inner being oppos- 

 able to the two outer, resembling to a certain point the grasping 

 hand of Chameleons. This character, however, is much less deve- 

 loped in C. rufescens, which constitutes a link towards Bhaco- 

 pliorus. 



Synopsis of the Species. 



Outer fingers nearlj- entirely webbed .... 1. rufescens, p. 92. 



Outer fingers half webbed 2. xerampelina, p. 93. 



Outer fingers one-third webbed 3. petersii, p. 93. 



1, Chiromantis rufescens. (Plate IX. fig. 2.) 



Polypedates rufescens, Giinth. Proc. Zool. iSoc. 1868, p. 486. 

 Chiromantis guineensis, Buchh. ^- Peters, Man. Berl. Ac. 1875, p. 203, 

 pi. 1. f. 1. 



Yomerine teeth in two oblique groups between the choanse. 

 Head longer than broad; snout rounded, longer than the greatest 

 orbital diameter, with indistinct cauthus rostralis ; loreal region not 

 concave ; nostril much nearer the tip of the snout than the eye ; 

 interorbital space broader than the upper eyelid ; tymjjanum half 

 the width of the eye. Inner fingers webbed at the base, outer ones 

 nearly to the disks ; toes modei-ate, entirely webbed ; disks of fingers 

 as large as the tympanum, of toes smaller ; subarticular tubercles 

 small ; a small inner metatarsal tubercle. The hind limb being 

 carried forwards along tlie body, the tibio-taisal articulation reaches 

 between the eye and the tip of the snout. Above with a few small 

 tubercles; beneath granular ; a fold above the tympanum. Upper 

 parts brown ; a rather indistinct dark cross band between the 

 eyes. 



W. Africa. 



a. 



Hgr. W. Africa. (Type.) 



