Strecker—Notes on the Robber Frog. 79 
adults. The complete metamorphosis must not take over 
six weeks, if we are to judge by the length of time re- 
quired for other frogs to transform after the first ap- 
pearance of the hind limbs. Two specimens collected in 
March were only about an inch and a half in length. This 
indicates that it requires from 214 to 3 years for this 
species to become full grown. 
GENERAL NOTES. 
Up to the 12th of March, Lithodytes was the only active 
amphibian noted. Even Acris was sluggish and the few 
examples observed were stirred out from piles of dead 
leaves and rock fragments in the bed of the gully. The 
only toads discovered were two semi-torpid examples of 
Bufo americanus which were found in burrows under a 
rotten log. 
In 1899 I captured a single half-grown Lithodytes in a 
gutter on one of the principal streets of Waco, just after 
a heavy shower. On April 13, 1910, an adult was cap- 
tured on an elm flat, nearly a mile from any bluffs. Two 
specimens of Bufo punctatus B. & G., a toad which also 
inhabits rocky gulches, were found under similar condi- 
tions in 1908. I have no theory to account for the pres- 
ence of these animals so far from their natural haunts. 
Our Robber Frogs may never breed in the heart of 
winter, yet their breeding dates are far in advance of 
those of other Anura inhabiting the vicinity of Waco. 
The following is a list of our tailless amphibians, with 
breeding and other data :— 
ANURA OF WACO. 
SPECIES. BREEDING DATES. BREEDING LOCALITIES. REMARKS, 
Hyla versicolor Le Conte 
UPee detect eeltiaenes April 3, 1899. Permanent ponds. Species 
April 3,1910. Permanent ponds. rare. 
April 21,1910. Small pool in gravel Large tad- 
pit. poles. 
Hyla cinerea Daudin.....April 15,1904. Permanent lagoon 15 
miles south of city. 
