times, perhaps 20, at infrequent and irregular intervals. 



Breeding: They breed from May 1 to July 20. The eggs are single, 

 attached to sphagnum or on the bottom. The egg is 1/20-1/16 inch 

 (1.2-1.4 mm.), the inner envelope 1/12 inch (1.9-2 mm.), the outer 

 1/8-1/6 inch (3.5-4.0 mm.). The olive tadpole is small, 1 2/5 inches 

 (35 mm.), its tail medium long with tip acuminate. The tooth ridges 

 are 2/3. After a tadpole period of 50 to 75 days, they transform from 

 the end of June to September 1 at 7/16—3/5 inch (1 1— 1 5 mm.). 



Notes: "When the tail is nearly absorbed and they leave the 

 water, they are about 25 mm. long and of a dull olive green. They 

 grow lighter, that is brighter green in hue with the disappearance of 

 the tail, until the little frogs, which in length of body are 15 mm., 

 resemble the mature individuals. The white that margins the green 

 of the back and extremities is not so conspicuous as in the adults, 

 and the saffron of the underparts is wanting in those that I have 

 examined." (Davis, 1907, p. 50). 



June 16-28, 1928. "To the writer the call seemed a nasal 'quack/ 

 almost verging on a 'quank' but without the strong 'n' sound of the 

 latter. The call was never disyllabic. 



"The note is repeated at about half-second intervals for some- 

 times fully 30 seconds. When the frogs are in full song an interval of 

 about two minutes' intervenes between outbursts. We had no difficulty 

 in starting the frogs calling again at distances of from fifty to three 

 feet, after they had been silent for a minute or so. One individual was 

 recorded as having called 74 times in one period of song. 



"The frogs definitely associate together for singing, whether be- 

 cause of the presence of females or for companionship. Five such 

 singing groups were definitely located. Of these the first contained 

 seven individuals, the second contained three, the third contained 

 eight, the fourth contained three and the fifth, which was just across 

 an uncrossable creek, contained at least six. 



"The time of singing was remarkably constant. On every night 

 but one the chorus started between ten and fifteen minutes before 

 sundown. On the one exception, a clear dry night with a bright moon, 

 the first songs were not heard until twenty minutes after sundown. 



"The carrying power of the song was excellent. A chorus was 

 plainly heard as an entity over 800 paces away, with two patches of 

 woods and a brushy swamp intervening. The wind was negligible. In- 

 dividual voices were distinguishable 754 paces away down a straight 

 road, with a light wind blowing from the observers toward the frogs." 

 (A. B. Klots, 1930, p. 108-111). 



105 



