HORN EXPEDITION—AMPHIBIA. 
171 
though, as usual, iutenuecHate forms may be found in various localities. At the 
Adminga Creek all the specimens were coloured as follows :—Dorsal surface 
greyish brown, ground colour with a moi’e rusty tint in the middle of the back. A 
light line runs from the tip of the snout to the level of the top of the eye and a 
little above the tympanum. Below this line is a dark band continuous along the 
side of the body with a series of dark spots. The position of the ilia correspond to 
dark elongate patches running backwards to the vent, which is surrounded by dark 
splotches. The upper surface of the limbs right to the tips of the fingers and toes 
are covered with splotches of dark umber, most prominent on the thigh and foot. 
Yellow patches are well-marked as described above. 
The Tadpole .—I was able to secure a few specimens of the tadpole in 
February, 1895, and have also to thank Mr. F. J. Gillen, of Alice Springs, and 
Mr. E. C. Cowle, of Illamurta, for further specimens. Unfortunately, the great 
heat and long and rough carriage did not render it easy to adequately preserve 
tadpoles, and the greater number of my specimens are more or less spoilt. 
After rain the tadpoles are fairly numei’ous, about as much so as those of 
C. platycephalus. In February, 1895, along the track between Oodnadatta and 
Charlotte Watei’s, these two forms were found almost to the exclusion of others. 
The folloAving are the dimensions of the tadpoles :— 
Length of body about one-and-a-half times the width and rather more than 
half the length of the tail. 
Nostril considerably nearer to the tip of the snout than to the centre of the 
eye. 
Eyes on upper surface not visible from below. 
The spiraculum is on the left side, not vei’y prominent, and not visible from 
above. 
The anus opens to the right side of the ventral tail crest, at the base of the 
tail. 
The tail is somewhat less than twice the length of the body, pointed at the 
extremity. The upper crest thins away at the base of the tail ; the lower one is 
broad, extending right to the abdomen. 
The beak is not very broadly edged with black. The lips are bordered with 
papillae, which are especially numerous at the interval between the upper and 
