On the Genus Lepidobatrachus, Budgett. 531 
Tasue VI, 
Control Collection to Table V. > 
Formula. Number. Per cent. 
OOOO Rte Sects ciacs's's eed iw ee 14 29-2 
OSU Rei eaes «Matas coeictine cane 1 1°5 
RD SA Dee are a oe the iss Stork ov 6. 6 17 26°5 
T28(45\.< 2 ses gh Wet 8 12:5 
MSNA ein. hia: es ale snhjae: « 10 156 
WIDSAD ete. c cre ata en sitar eskeiee 14 25°0 
SuMMARY. 
The conclusions drawn from the foregoing observations 
are :— 
The selection of snails by thrushes is entirely haphazard, 
and the evidence does not suggest that one form is more 
palatable than another. 
There is some evidence that many-banded specimens of 
H. nemoralis are more abundant in bushy shaded places. 
As the thrushes as a rule prefer open feeding-grounds, it 
is possible that this may account for the higher proportion 
of unbanded shells at certain ‘ anvils.” 
The young thrush does not recognize and crack snail- 
shells instinctively, but each individual probably learns to do 
so by personal experience. 
LV.—On the Genus Lepidobatrachus, Budgett. 
By G. A. Bourenecer, F.R.S, 
(Published by permission of the Trustees of the British Museum.) 
Tue British Museum has recently received, by way of 
exchange with the Cambridge Museum of Zoology, the type- 
specimens of the problematic Paraguayan Frogs discovered 
by the late J. S. Budgett, and very shortly described by him 
in the ‘ Quarterly Journal of Microscopical Science,’ xlii. 
1899, p. 329, under the names of Lepidobatrachus asper and 
L. levis. I seize this opportunity for expressing an opinion 
on their systematic position, which had not been dealt with 
by the author, and for correcting some errors in which he 
had fallen. 
I can see no reason for maintaining the genus Lepido- 
batrachus (etymological justification not stated). On com- 
paring Budgett’s diagnosis with that of Ceratophrys, one 
