92 RANID.E. 
4. CHIROMANTIS. 
Chiromantis, Peters, Arch. f. Naturg. 1855, p. 56; Giinth. Cat. p. 84; 
Cope, Nat. Hist. Rev. 1865, p. 116. 
Polypedates, sp., Giinth. Proc. Zool. Soc. 1868, p. 436. 
Pupil horizontal. Tongue free and deeply notched behind. Vo- 
merine teeth. Tympanum distinct. Fingers 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 CO. rufescens, which constitutes a link towards thaco- 
phorus. ; 
Synopsis of the Species. 
Outer fingers nearly entirely webbed .... 1. rufescens, p. 92. 
Outer fingers half webbed.............. 2. verampelina, p. 93. 
Outer fingers one-third webbed.......... 3. petersit, p. 93. 
1. Chiromantis rufescens. (PLATE Ax. fig. 2.) 
Polypedates rufescens, Giinth. Proc. Zool. Soc, 1868, p. 486, 
Chiromantis guineensis, BDuchh. § Peters, Mon, Berl. Ac. 1875, p. 208, 
pl, Ut. ok 
Vomerine teeth in two oblique groups between the choane. 
Head longer than broad; snout rounded, longer than the greatest 
orbital diameter, with indistinct canthus rostralis ; loreal region not 
concave; nostril much nearer the tip of the snout than the eye; 
interorbital space broader than the upper eyelid; tympanum half 
the width of the eye. Inner fingers webbed at the base, outer ones 
nearly to the disks; toes moderate, 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 the body, the tibio-tarsal 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, Her. W. Africa. (Type.) 
