4. CHIEOMA.??TIS. 5. IXAXTTS. 93 



2. Chironiantis xerampelina. 



Chiromantis xerampelina, Giinth. Cat. p. 85. 

 Chiromantis xerampelina, Peters, Arch.f. Naturg. 185o, p. 56. 



Vomerine teeth between the choanae. Head broader than long ; 

 snout shorter than, or as long as, the greatest orbital diameter. 

 Inner fingers webbed at the base, outer ones half webbed. Sides 

 with reddish-brown spots and bands. Male without vocal sac. 



Mozambique. 



3. Chiromantis petersii. (Plate X. fig. 1.) 



Vomerine teeth in two oblique groups between the choanae. 

 Head broader than long : snout rounded, as long as the greatest 

 orbital diameter, with indistinct canthus rostralis ; loreal region not 

 concave ; nostril equally distant from the eye and the tip of the 

 snout ; interorbital space scarcely broader than the upper eyelid ; 

 tympanum half the width of the eye. Inner fingers webbed at the 

 base, the outer ones one-third webbed ; toes short, nearly entirely 

 webbed ; disks very small ; subarticular tubercles well developed ; 

 a small inner metatarsal tubercle. The hind limb being carried 

 forwards along the body, the tibio-tarsal articulation reaches the 

 eye. Skin smooth, granular on the belly and under the thighs ; a 

 slight fold above the tympanum. Greyish brown above, indistinctly 

 marbled ; a dark-brown stripe on the temporal region. Male with 

 an internal vocal sac. 

 Interior of E. Africa. 



a. (S . Interior of E. Africa. 



5. IXALUS*. 



Orchestes, Tschudi, Batr. p. 76. 



Ixalus, Dum. ^- Bibr. viii. p. 523 ; G'dnth. Cat. p. 74 ; Cope, Nat. Hist. 



Rev. 1865, p. 116. 

 ? Leptomantis, Peters, Mon. Berl. Ac. 1867, p. 32. 



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

 merine teeth none. Tympanum distinct or hidden. Fingers free 

 or webbed at the base ; toes webbed ; tips of fingers and toes dilated 

 into regular disks. Outer metatarsals separated by a groove or 

 narrow web. Omosternum and sternum with a bony style. Ter- 

 minal phalanges obtuse. 



East Indies. 



Ixalus japonictis. Hallow. Proc. Ac. Philad. 1860, p. 481. — Japan. 



