54 BATRACHIA. 



a horny ridge extends along the inner edge of the tarsus. The exte- 

 rior ridge of the fifth toe is bordered by a membranous ridge, which, 

 however, does not reach quite to its extremity. 



The skin above is minutely pustulous, and smooth beneath. 



The ground color is greenish-brown, uniform and lighter beneath. 

 There are obsolete darker spots on the body as well as on the limbs. 

 The margin of the upper jaw and sides of the head exhibit similar 

 traces of maculae. 



Loc. Two specimens were collected in the Caldera, on Mindanao. 



GENUS HALOPIIILA, GIRARD. 



CHAR. GEN. Denies vomerini inter et post nares in acervos duos elon- 

 gatos collocantur. Lingua elongata, lanceolata ; antice angusta, pos- 

 tice bifurcata, per dimidiam ejus longitudinem libera. Tympana dls- 

 tincto. Tubulis Eustachianis modicis. Pcdmarum digitis liberis, 

 plantarum vero aliquantulo palmatis. Discis subdigitalibus magnitu- 

 dine diversis. 



GEN. CHAR. Vomerine teeth disposed upon two oblong groups, situ- 

 ated between and behind the inner nostrils. Tongue elongated, 

 lanceolated, narrow anteriorly, forked posteriorly, and free half its 

 length. Tympanum distinct. Eustachian tubes moderate. Fingers 

 free. Toes with rudimentary web at their base. Subdigital disks 

 varying in development. 



SYX.Halophila, GED. in Proc. Acad. Nat. Sci. Philad. VI, 1853, 423. 



OBSERV. This genus is very intimately related to Hylarana, and 

 like the latter, combines characters of both Hyla and Rana. It has 

 the forked tongue of Rana, and the extremities of the fingers and 

 toes dilated as in Hyla. It is distinguishable from Hylarana by its 

 tongue, which is free behind on a greater extent ; by its toes, which 

 are but slightly webbed at their base, and by its digital extremities 

 more developed, and, therefore, resembling more the same parts in 

 Hyla. The shape of the body and head, on the other hand, resembles 

 Rana most. 



