328 
Philippine Journal of Science 
1920 
parts of the forest. Their croaking made an ominous roar, 
easily heard a kilometer away. The note is chuck-chuck-chuck 
rapidly repeated. Males seem to occur in larger numbers than 
females; not infrequently females were observed mounted by 
four or five males. The male exudes a sticky substance on the 
belly which fastens him to the female. Occasional specimens 
were found mounted by males of Kalophrynus stellatus that 
were breeding at the same time. While the eggs were being 
deposited, the frogs swam about on the surface of the water. 
The species is arboreal and burrowing. When a small Pan- 
danus tree, about 7 meters high was cut, twelve specimens were 
taken from the axils of the leaves. Others were unearthed by 
my collectors from about peanut and camote vines. They appear 
to feed largely, if not wholly, on ants. The type is from Luzon. 
Genus KALOPHEYNUS Tschudi 
Kalophrynus Tschudi, Class. Batr. (1838) 36; Gunther, Cat. Batr. 
Sal. Brit. Mus. (1858) 54; Cope, Journ. Acad. Nat. Sci. Philadelphia 
II 6 (1867) 195; Stejneger, Proc. U. S. Nat. Mus. 33 (1908) 575. 
Berdmorea Stoliczka, Proc. As. Soc. Bengal (1872) 146. 
Calophrynus Boulenger, Cat. Batr. Sal. Brit. Mus. ed. 2 (1882) 157. 
No teeth in jaws; no vomerine teeth; a dermal ridge across 
palate between or behind choan« ; one or two dermal denticulated 
ridges between, and in front of, Eustachian tubes; head small; 
mouth small; tongue oval, free or notched behind; tympanum 
distinct ; skin of back thick and glandular like a parotoid ; pupil 
horizontal; fingers free, toes partially webbed, digits without 
disks ; outer metatarsals united, coracoids broad, abutting ; pre- 
coracoids weak, parallel with latter; omosternum and sternum 
cartilaginous ; diapophyses of sacral vertebrae moderately di- 
lated; terminal phalanges simple. 
The genus is known from southern China, Borneo, and the 
Philippines. Two species have been described from the Philip- 
pines; one from Mindanao, the other from either Culion or 
Samar- 
Key to the Philippine species of Kalophrynus Tschudi. 
a^. Snout pointed; tongue nearly circular; tibiotarsal articulation reaches 
tympanum; tympanum four-fifths eye; no sacral spots. 
K. acutirostris (Boettger). 
a". Snout pointed or blunt; tongue oval; tibiotarsal articulation reaches 
eye ; tympanum about three-fourths eye ; two black, white-edged sacral 
spots K. stellatus Stejneger. 
These small toads are terrestrial. When taken in the hand 
alive they exude a white viscous fluid from the entire surface 
