400 BATRACHIA. 



seded by the lungs, which are gradually developed, the hind limbs, and later the fore limbs, 

 sprout forth, whilst the tail is absorbed ; the intestinal tract becomes shorter, dividing itself 

 into stomach and small and large intestine. 



No inquiries have been made as to the time occupied by the Indian species in their 

 development ; it is about a hundred days in the European Rana tem])oraria. But several 

 years elapse before the young perfect Batrachian attains its full size. 



None are poisonous. 



All the Indian species belong to the division which are distinguished by having the tongue 

 adherent in front and more or less free behind (Ojnsfhoglossa). 



I. Fingers and toes tapering or cylindrical, not dilated at the end: Ground-frogs. 



a. Maxillary teeth present ; the transverse processes of the sacral vertebra not dilated ; no parotoids. 

 Toes entirely ■webbed ; vomerine teeth none ; tongue not notched behind . . Oxyglossus, p. 401. 

 Toes broadly webbed ; vomerine teeth none ; tongue deeply notched behind . . Dicroglossus, p. 402. 

 Vomerine teeth present ; metatarsus with one or two blunt tubercles .... Rana, p. 402. 

 Vomerine teeth present ; toes completely webbed ; metatarsus with a flat, sharp- 

 edged prominence Hoplobatrachus , p. 410. 



Vomerine teeth present; toes incompletely webbed; metatarsus with a flat, 



sharp-edged prominence Pyxicephalus,'^. 4:\\. 



b. Maxillary teeth present ; the transverse processes of the sacral vertebra dilated; no parotoids. 



Toes shortly webbed ; eyelid prolonged into a triangidar flap Megalojjhrys, t^. 4:12. 



Toes quite fi'ee ; eyelid not prolonged Xenophrys, p. 414. 



c. Maxillary teeth none ; parotoids none. 



Metatarsus with a pair of large, compressed prominences Cacojms, j). 415. 



Metatarsus with U\o obtuse tubercles Diplopelma, p. 417. 



d. Maxillary teeth none ; parotoids present. 



Toes webbed Bufo, p. 418. 



II. Fingers or toes dilated into a disk : Tree-frogs. 



a. Maxillary teeth present ; the transverse processes of the sacral vertebra not dilated ; no parotoids. 



A glandular fold along each side of the back Hylorana, p. 423. 



Vomerine teeth present; no glandular fold on the side of the back; fingers 



incompletely webbed Polypedates, p. 427. 



Vomerme teeth none Ixalus, p. 432. 



Fingers completely webbed Rhacophorus, p. 435. 



b. Maxillary teeth present ; the transverse processes of the sacral vertebra dilated; no parotoids. 

 Toes webbed Hyla, p. 435. 



c. Maxillary teeth none ; the transverse processes of the sacral vertebra dilated ; no parotoids. 

 Toes weblied Kallula, p. 436. 



Note. — For completeness' sake we must mention a Batrachian which has Ijeen referred to the genus 

 Bomhinator, but the description of which does not contain those points by which its systematic position 

 can be ascertained : — 



BoMBiNATOR siKKiMENSis, Blyth, Joum. As. Soc. Beng. 1854, xxiii. p. 300. — Size and general character (?) 

 of the European Bombinator ignevs, but the hind toes free, or slightly webbed only at their extreme base. 

 Male with four large sulxiuadrilateral papillose callosities on the breast, and corresponding callosities on 

 the tipper surface of the innermost digits of each fore foot. The tubercles of the head, body, and limbs 



