330 Frogs of the Okefinokee Swamp 



OVULATION 



Habitat. We made little effort for the life history of this species in 

 Okefinokee Swamp country. We found their tadpoles in water pits at Camp 

 Pinckney; and in suitable ponds and places near Spanish Creek Woods they 

 must have laid. On June i, 191 7, when we did not know Acris eggs, at Din- 

 widdie, Va., we found in a shallow pool (10 x 8 ft. in diameter and 4 inches 

 deep) no end of eggs packets on the surface. Normally we would have in- 

 stantly called them Hyla versicolor but we had heard Acris in this direction. 

 When nightfall came, in the bushes around this pool were several Hyla 

 versicolor males. They were Hyla versicolor eggs not those of Acris. 



Period. At Ithaca we have records of breeding from May 10- June 17. 

 They were active in 1922 from June 3- June 12 onward on our trip from Ithaca 

 to Georgia. We heard them several times in Pennsylvania, at New Alexandria, 

 Va., Roanoke River, Cary, and Everett's Pond, N. C. We heard them in the 

 Okefinokee country from June 10- August 13, 1922. We might not be inclined 

 to think of them breeding, were it not that a female taken August 1 1 had ripe 

 ova. Mature tadpoles (some with two legs) June 22, must have been laid in 

 early days of May, as early as May i, or the last of April. On July 5, 1922, 

 we found eggs at Camp Pinckney, Ga., eggs which we suspected were those of 

 Hyla versicolor. 



Temperature and humidity. The eggs we found July 5, 1922, were laid in 

 the period of rain (every day from July 1-5) when 2.97-3.20 inches fell, when 

 minima reached from 68°-72°, and maxima from 83°-96°. The greatest 

 period of activity came August 8-13 when minima were 68°-74°, maxima 

 8i°-93° and rainfall for this period was 2.35 inches, 1.48 inches, 1.49 inches, 

 2.35 inches and 4.06 inches for stations around the swamp. 



Egg-laying process. In 19 14 (pp. 48, 49) we described the process, 



EGGS 

 In Dinwiddle, Va., June i, 19 17, the tree toad eggs were as recorded for 

 Ithaca, N. Y. Some of the packets were larger than ever recorded before. 

 Occasionally it looked as if several packets were merged. In 1924 (p. 378) we 

 characterized the eggs as follows: "Eggs deposited in a mass. Egg mass a 

 surface film. Egg envelope outhne indistinct, more or less merged in the jelly 

 mass; jelly gelatinous; egg brown above, cream or yellow below. Egg packets 

 small, masses seldom if ever over 20 sq. in. (125 square centimeters), or 4 by 

 5 inches in diameter (10 by 12.5 cm.). Inner envelope small 1.4 to 2.0 mm.; 

 outer envelope 4 to 8 mm. Packets small, seldom over 30 to 40 eggs; vitelline 

 I.I to 1.2 mm. Egg complement, 1802. Season May 10 to August 12." 

 The above complement is compiled from a female captured August 12, 1922. 

 The count of the left ovary was 901. 



TADPOLE 



Color description from life ( Non Ridgway) . General color of back olive 

 green. Background of back yellowish, several with many fine hair-like black 

 markings and golden and black spots, becoming orange in the head region 



