2i8 Frogs of the Okefinokee Swamp 



Duration, night or day. Pairs mated in laboratory the night of May 26, 

 192 1, were in embrace next day without ovulation. They were captured at 

 night and mated at night. 



Amplexation {Normal, abnormal). The first amplexation came May 26, 

 1921. Several males and females were captured in the evening. "Put all 

 Pseudacris together. Soon two pairs were mated, one pair of male and 

 female. . . . Typical axillary embrace. They kept thus until we reached 

 camp and were flash-lighted without disturbing their amplexation." 



On May 21, 192 1 "Caught a lot of Pseudacris males in the pond in the 

 afternoon. Two males amplexated. It was an axillary embrace." On May 

 26, 192 1 "put many Pseudacris together. Soon two pairs mated — One was a 

 female with two males embracing, one male holding the female axillary fashion 

 and other male holding the mating male axillary fashion. They kept thus 

 until camp was reached and were flash-lighted." 



OVULATION 



Habitat. The search for this life history was long and at times dis- 

 couraging. On May 26, 192 1 "we went for oak toads and Pseudacris. In 

 pond here the Pseudacris are gone from damp grassy sedgy places. Have they 

 reached the pond? Found only one in this area where for ten days they were 

 common." "Pseudacris often in little islands of grass mats where grass 

 extends 1-2 inches above water. Principally on little leaf islands with a black 

 gum or so and one or two overhanging bushes; on wet old leaves of former 

 years, also along edges of pond north and east side in grass or on leaves around 

 black gum trees. On one grassy log a male was calling; a foot or less away 

 was a female and not far from her another female. Apparently the females 

 are beginning to approach the water. Have seen a few females in the water. 

 Put all the males and females together. Soon two were mated." The follow- 

 ing morning. May 27, 1921, we noted: "No eggs as yet." On June 4 we went 

 to Chorophilus pond for habitat pictures. On mossy logs were Pseudacris. 

 Looked faithfully for a pair but did not find them." 



On June 25, 192 1, "found a big congress. Are they finished breeding or 

 at height of breeding or what? Am afraid this form is so tiny it has slipped 

 by me." 



Not until July 16, 192 1, did we find mated pairs in the field. From lab- 

 oratory mated pairs no eggs had come. "While searching for coatbets (Hyla 

 gratiosa) I found a pair of Pseudacris ocularis on a mossy log amongst Wood- 

 war dia fern. Tried for it and missed it. Later it leaped to a fern stem where 

 we caught it. In a stand of ferns next to a tree with hurrah bushes (Leucothoe 

 racemosa) were two pairs. Later Harper caught a pair but alas lost the male! 

 One or two more females were taken and several males. The pairs laid by 

 the next morning." 



Period. On the basis of mating we have mated pairs from May 26 to 

 July 16 in 192 1 . On the basis of calling we have records from May 16 to 20 — 

 August 18 and some of the August records are of immense choruses in mid 

 August. In 191 2 a female taken June 16 was unspent. In 192 1 three females 



