angle of eye to shoulder, not prominent; dorsolateral folds indis- 

 tinct; webs very well developed, greater in males than females; some 

 males with inconspicuous groove across middle of thumb tubercle. 



Voice: Not recorded. 



Breeding: They breed during June and July. The eggs and tad- 

 poles have not been described. They transform at 11/16-4/5 inch 

 (17-21 mm.). 



Notes: "Rana aurora is a delicately formed, smooth frog, less 

 hardy than most frogs of North America. ... It is shy and wild, 

 and difficult to keep in captivity, except in a perfect imitation of its J 

 environment. In such a place, it seems to enjoy equally sitting under 

 the shade of ferns or in the water, and eats earthworms greedily. 

 Both male and female give high-pitched, jerky cries, expressing 

 fright, when taken in hand. One unusually large specimen opened his 

 mouth wide and gave a prolonged high-pitched scream, reminding 

 one of the similar sound produced by the common bullfrog. — (From 

 The Frog Book, by Mary C. Dickerson, copyright, 1906, by Double- 

 day, Doran and Company, Inc., p. 217). 



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