AMPHIBIA 
Common Tree Frog, Hyla versicolor, LeConte. Oc- 
curs in woods containing bushes and low trees on 
all sides of the city. Spawns among grasses at edges 
of pools, eggs in small masses close to surface of 
water, or floating. May 20-July 1. The tadpole 
has a very considerable metallic lustre and shows 
very rapid movements. The metamorphosis takes 
place in about’seven weeks. 
Spring Peeper, Hyla pickeringii, Holbrook. Found 
only to west of city, though it probably occurs on the 
north and east as well. In woods containing bushes 
and low trees. The eggs are attached in very small 
groups to grasses at the margin of pools, close to 
surface of water. April 10-May 1. The tadpole 
has but very little dark pigment. The metamor- 
phosis occurs in about eight weeks, while the tail is 
yet long. 
Leopard Frog, Rana pipiens, Shreber. In the 
neighbourhood of streams and pools, or even at con- 
siderable distances from water in long grass. On 
all sides of the city. Spawns in shallow parts of 
pools, egg masses submerged. April 15-May 20. 
Tadpole very dark. Metamorphosis takes place in 
about ten weeks. 
Pickerel Frog, Rana palustris, Leconte. Near 
the edges of marshes and brooks, where the water 
may be reached by a few very long leaps. Has been 
found only along streams to the west of the city, but 
probably occurs to the north and east as well. 
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