312 



EANID.E. 



which float on the water.* The number of eges 



&s 



varies according to the size of the female ; L. Greening 



Fig. 113. 



has counted from 1500 to 2500, and Heron-Royer from 

 2856 to 4005. Greening's results agree better with 

 my own, as I have counted 1155, 1188, 1584, 1744, and 

 2044. The embryo, on liberation, is of a dark brown, 

 nearly black, with a well-developed tail, and dark 

 brown, branched external gills, which soon acquire a 

 large size. 



Tadpole (PI. Ill, fig. 3). — Length of body once and 

 a half to once and two-thirds its width, one-half to 

 two-thirds the length of the tail. Nostrils equally 

 distant from the eyes and the end of the snout, or a 

 little nearer the latter. 



Eyes on the upper surface, a little nearer the end 

 of the snout than the spiraculum ; the distance between 

 the eyes about once and a half the distance between 



* Dr. Bidewood showed me in March, 1897, a mass of eggs that had 

 been laid by a moderate-sized frog. These eggs were exceptionally 

 small, the vitellns measuring rather less than 2 mm., and some of them 

 formed a regular string, in a single file, 4 cm. in length, closely 

 resembling the eggs of a toad. I have preserved a portion of these 

 abnormal eggs in spirit, and they are now in the collection of the 

 British Museum. 



