482 MR. R. I. POCOCK ON THE 
purpose. Hence the webs themselves can be of little, if any, 
service for aquatic progression. 
Text-figure 2. 
VV) 
SHEN Nos 
. 
ASS HTL (| 
\ 
2 
NO 
SY 
WA& 
iN) 
\y\ 
Ss <— 
TEAS s 
ae 
SS 
Xs 
iit 
Ze YOU 
A. Left fore paw of Aberdeen Terrier, from below. 
B. The same of Bulldog. 
C. The same of Greyhound. 
Both the under and upper sides of the web are highly glandular, 
and on the upper side there is a little naked pocket in the angle 
formed by the junction of the third and fourth and fourth and 
fifth toes. This is sometimes absent, and always much shallower, 
between the second and third toes. The hair clothing the web 
grows in little tufts from crater-like depressions. The plantar 
pad varies considerably in length and width, according to the 
