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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