PAPERS ON ZOOLOGY AND PHYSIOLOGY 325 
Rana pipiens Shreber, Leopard Frog. Rather common in 
the region but more often seen in early spring, when breeding 
takes place. Mr. Ruthven in examining the Leopard Frogs 
sent him found them to be very similar to Rana sphenocephala 
Cope. 
The eggs are laid in early spring chiefly in isolated ponds 
and pools, even those that dry up in a short time producing 
much mortality of the tadpole progeny. Very few eggs have 
been found in the quiet pools of streams, although frogs are 
often about these places in numbers during the breeding sea- 
son. The gelatinous egg masses are commonly conspicuous 
for they are large, often about the size of a double fist, and 
subglobular in form; each contains many hundred eggs. 
The life cycle of the Leopard Frog is usually if not always 
completed during the season that the eggs are laid. Transfor- 
mation stages and young frogs have been found on the follow- 
ing dates: July 7, 1904; June 27, 1913; July 7, 1913. A 
large frog of this species was in the stomach of a large Garter 
Snake, Thamnophis sirtalis, taken on November 24, 1913, 
(Hankinson, ’15). 
A Leopard Frog, brought in on September 29, 1905, by Mr. 
Elmer McDonald, is abnormal in having two arms on the right 
side, one of which is small and lacks the hand; and the left 
arm is two-branched at the elbow, each branch is the same size 
and with a complete hand. Wagner (713) found a similar 
specimen with supernumerary arms. 
Rana cantabrigensis Baird, Wood Frog. Sometimes found 
in deep ravines ; apparently uncommon. 
Rana catesbeana Shaw, Bull-frog. Common about larg- 
er streams and ponds in the region. Frogs with bodies six or 
more inches in length are frequently seen along the Embarrass 
River where they are sometimes shot with small rifles on ac- 
count of their edible hind legs. Large tadpoles of this species 
nearly six inches long are often found. 
Storeria dekayi (Holb.), De Kays Snake, Only one has 
been found in the region, and this came from a piece of upland 
woods along a ravine. Garman ('92) says that it is found in 
all parts of the state, but it is not very common. 
