16, 3 Taylor: Philippine Amphibia 295 
Color in life-—Dark brown to black; belly rather lighter; 
older specimens have minute yellow spots, and by the time the 
anterior limbs have sprouted, the shoulder spots are evident. 
Remarks.—The adults and tadpoles from Basilan were taken 
in a small hole filled with water and rotting leaves in a tree 
trunk about one-half meter from the ground. No specimens had 
been observed, but when the hole was emptied the adults and 
tadpoles were taken from the bottom. The adults are very active 
and jump with great rapidity; it is probable that their apparent 
rarity is due to the fact that for the most part they are arboreal; 
they feed largely on ants. It is noteworthy that among the 
leaves and trash found in the water there were great numbers 
of aquatic ants. In the character of the finger disks this species 
resembles Polypedates. None of the specimens appears to have 
vocal sacs. 
The species is known only from Bunawan, Agusan, Mindanao, 
and Basilan, in the Philippines. 
Genus PHILAUTUS Gistel 
Philautus GisteL, Naturg. Thierr. 10 (1848); SresNecER, Proc. U. S. 
Nat. Mus. 28 (1905) 346;* BarBour, Mem. Mus. Comp. Zool. Har- 
vard Coll. 44 (1912) 69. 
Izxalus DUMERIL and BrIBRON, Erp. Gén. 8 (1841) 523; GUNTHER, Cat. 
Batr. Sal. Brit. Mus. (1858) 74; Copr, Nat. Hist. Rev. (1865) 116; 
BOULENGER, Cat. Batr. Sal. Brit. Mus. ed. 2 (1882) 93. 
Orchestes TscHupi, Class. Batr. (1838) 76. 
Leptomantis PETERS, Mon. Berl. Ak. (1867) 32. 
“Pupil horizontal. Tongue free and deeply notched behind. 
Vomerine 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. Terminal phalanges obtuse.” (Boulenger.) 
Remarks.—This genus is closely related to Polypedates Tschudi 
and Staurois Cope. External differences between the species of 
the genera are indeed meager, as certain Polypedates have no 
vomerine teeth and these are also wanting in Staurois. The 
Philippines are rich in species of this genus, no less than seven 
having been described heretofore, and two new ones are included 
in this catalogue, both quite clearly differentiated from other 
own forms. 
* Stejneger has shown that this name must take precedence over Ixalus 
ril and Bibron, which is preoccupied by Ixalus Ogilby, 1836, for a 
genus of mammals. 
