CALLTJLA. 493 



Genus CALLULA, 

 Gray, Zool. Misc. p. 38, 1831 (Kaloida). 



Pupil vertical. Tongue oblong, entire and free behind. Palatine 

 bones forming a sharp, sometimes a toothed ridge across the 

 palate. T\vo cutaneous, more or less distinctly denticulated ridges 

 across the palate, in front of the oesophagus. Tympanum hidden. 

 Fingers free ; toes free or webbed ; tips of fingers and toes more 

 or less dilated. Outer metatarsals united. No pracoracoids ; no 

 omosternuiii ; sternum cartilaginous. Diapophyses of sacral 

 vertebra moderately dilated. Terminal phalanges triangular or 

 T-shaped. 



Distribution. 8 species are known, of which 3 are only found in 

 the Malay Archipelago. 



In spite of their dilated digits, these frogs are by no means 

 arboreal. Callula pulchra is more a burrower ; Stoliczka, who 

 observed it near Moulmein, says it appears after sunset, crawling 

 on old wood and feeding on white ants. 



$ynoj)sis of Indian, Ceylonese, and Burmese tyecies. 



A. Toes one-third or half webhed C. obscura, p. 493. 



B. Toes -with a rudiment of web. 



a. Inner metatarsal tubercle large, sharp- 



edged, as long as inner toe C. pulchra, p. 494. 



b. Inner metatarsal tubercle large, blunt, 



shorter than inner toe , C. macrodactyla, p. 494, 



c. Metatarsal tubercles small, scarcely 



prominent C. variegata, p. 494. 



C. Toes perfectly free C. trianyidaris, p. 495. 



94. Callula obscura. 



Callula obscura, GiintJi. Rept. B. I. p. 438 ; Boukng. Cat, Batr. Sat. 



p. 169, pi. xiii, tig. 3. 

 ? Hylaedactylus montanus, Jerdon, J. A. S. B. xxii, 1853, p. 533. 



Snout short, rounded, as long as the diameter of the orbit or a 

 little longer ; interorbital space broader than the upper eyelid. 

 Fingers moderate, the tips dilated into well-developed truncated 

 disks : first finger shorter than second ; toes moderate, one-third or 

 half webbed, the tips slightly swollen ; subarticular tubercles 

 distinct; two small metatarsal tubercles, the inner oval, blunt, 

 scarcely prominent, the outer minute, rounded. The tarso-meta- 

 tarsal articulation reaches the eye or the tip of the snout. Skin 

 smooth, or with small flat tubercles on the head and back ; a fold 

 from the eye to the shoulder. Above brownish or greyish, wkh 

 blackish angular markings ; sometimes uniform blackish brown ; 

 beneath blackish brown, spotted with whitish. Male with a sub- 

 gular vocal sac. 



From snout to vent 1'3 inches. 



Hal. Ceylon, and hills near Malabar coast, Southern India. 



