150 Frogs of the Okefinokee Swamp 



mode 1.3. Width of the body in the length of the body 1.2-1.7, average 

 1.55. Nostrils .8-1.5 nearer the eye than the snout, average 1.2, mode 1.22, 

 one example 2.0. Eye lateral, usually much nearer to the snout than spiracle. 

 Distance between nostrils in interorbital distance .8-1.8 times, one example 

 2.0, average 1.25; in mouth 1.33-2.0, average 1.6. Spiracle 1.3 4-1. 7, usually 

 1. 4-1. 6, nearer the base of the hind legs than tip of snout, average 1.47. Anus 

 median. Depth of the tail in its own length 3.8-6.0, average 4.6. Depth of 

 the muscular part of the tail in the depth of the tail 1.0-2.5, average 1.5. 

 Interorbital distance is contained in the mouth i . 1-2 .0, average i .4. Greatest 

 length 20.25 mm. Greatest length of the body 8.5 mm. Greatest length of 

 tail 12.75 mm. Greatest depth of tail 3.0 mm. 



General remarks. In coloration, mouth parts and measurements these 

 are not unlike those of Bnfo americanus. 



LARVAL PERIOD 



On June 22, 1922, we found eggs about ready to hatch in No. 2 turpentine 

 pit at Camp Pinckney. One July 25, at this same pit or 33 days later Bufo 

 tadpoles were transforming and transformed. We entered the swamp on 

 April 22, 1 92 1, on April 23 and 24 eggs were laid and our first transformation 

 records are April 27 and May 22. The latter record is probably not from the 

 April 23 and 24 eggs or if so it gives a month for larval period. The next trans- 

 formations come June i, June 4, June 16. These if from April 23 and 24 

 eggs would give 38, 39, 41, 42 and 54, and 55 days. Doubtless 38-55 days 

 falls within the period though less time down to 30 days may be probable 

 on special occasions. 



TRANSFORMATION 



Period. In 191 2 on June 12 in another more permanent pond a fine series 

 from tadpoles to transformations were taken. On June 24, still another 

 series of transformed frogs was taken. 



In 192 1 on April 27 around Long Pond's edges we found tadpoles, trans- 

 formed toads and different sized young from 10 mm. to 24 mm. On May 7 

 in pools either side of the railroad found transforming young and different 

 stages of tadpoles. On May 15 many transformed young were travelling 

 on Billy's Island in the rain. On May 22 we secured more transformations. 

 On June i we note "toad tadpoles hopping around." On June 4 we make 

 three collections of transformed toads. On June 16 others were recorded and 

 transformations in July. 



In 1922 we found southern toad toad tadpoles transformed at ponds i 

 mile south of Trader's Hill and also at Trader's Hill Landing on June 23. 

 Four days later we find a few in Anna's Pond. On June 30, Saddlebag Pond 

 has transformed toads. A month later on July 24 and 25 at Camp Pinckney 

 transformed and transforming toads were in evidence. 



This gives us transformation from April 27 to July 25 but eggs laid in 

 August must transform in September or even October. 



Size. In 191 2 the transformation sizes of 13 specimens range from 7.5-1 1.5 

 mm., average 9.75 mm., mode 9.5 mm. A series of June 24, 1912 was 6.5, 



