280 The Philippine Journal of Science 1922 
Kalophrynus stellatus Stejneger. 
Kalophrynus stellatus STEJNEGER, Proc. U. S. Nat. Mus. 33 (1908) 
575; TAYLOR, Philip. Journ. Sci. 16 (1920) 3829, pl. 9, fig. 2; 
Amphibians and Turtles of the Philippine Islands (1921) 130. 
I obtained a splendid series of this species at Port Holland, 
Basilan, between October 8 and 14. The animals were found 
breeding in an old watering trough near the forest, and in pools 
of stagnant water held by gnarled tree roots in the same 
immediate locality. 
A large female with a male clasped on her back was first 
discovered hopping toward the trough about 11 o’clock in the 
morning of October 8. I watched them enter the water and 
begin swimming about. The male kept holding on to the 
female with his arms, leaving his legs stretched out behind. 
After about five minutes the female ducked her head and 
anterior part of the body under the water, exposing the pos- 
terior part, and the anal opening. The male slid back until his 
head was out of the water, and clasping the female along the 
side of the belly placed his legs in such a position about the 
anus that a small cup was formed, into which the female ex- 
truded a small group of eggs, and the male, the sperm. Thus 
the eggs and sperm came into contact above the water. The 
female then righted herself, and the male pushed forward 
again. They swam a short distance, and the same process was 
repeated. This was done some twelve or thirteen times, an 
interval of one or two minutes elapsing between each extru- 
sion. 
The extruded eggs were surrounded by a gelatinous disk 
which encircled the sphere in a plane, and held the eggs from 
rotating; the disk has a circular depression between the egg 
and the outer rim. This disk gradually widens after extru- 
sion until it becomes about 6 millimeters in diameter. From 
nine to seventeen eggs are extruded at one time. They could 
be counted floating together, each group separated from that 
preceding it. After completing the deposition, the female gave 
a slight kick and the male, apparently recognizing the signal, 
unclasped the female, and dived under the water. He reap- 
peared a minute later, crawled over the edge of the tank, hopped 
to the ground, and started away. The female soon left the 
tank. Both were captured. 
I watched more than ten pairs approach the tank, enter, and 
go through the same egg-laying process. All were captured after 
they left the tank. 
