Hyla andersonii 243 



General remarks. The first author to discover and to describe the tad- 

 poles is W. T. Davis (1907, pp. 49, 50). "It was observed in June at Lake- 

 hurst that the males of Hyla andersonii were attracted to a few small pools 

 in particular, several of which were only a yard or two in diameter. On July 

 2ist, with Mr. James Chapin, I made search of these pools for the tadpoles, 

 and was fortunate in finding a number in one pool, although they appeared 

 to be absent from another and similar locality about a mile distant where the 

 adult frogs had been and were still most numerous. The tadpoles collected 

 were in all stages from a few millimeters long to those just leaving the water 

 as little frogs. The mature tadpoles are from 35 to 40 mm. long and of the 

 usual tadpole color, that is, of the color of the muddy bottom of a pool. The 

 under parts are lighter and show a golden sheen, which sometimes extends 

 up the sides. The small hind legs show early on the ends of the toes the disks 

 that are so conspicuous in' the mature Hyla. The tail is spotted, and there is 

 usually a dark irregular marginal band. The maculations sometimes become 

 irregular blotches as on the tails of the tadpoles of Hyla versicolor." 



Noble and Noble (1923, pp. 443-448) give a detailed account of the tad- 

 pole of this species with illustrations of labial mouth parts and the mature 

 tadpole. 



LARVAL PERIOD 



We found the larvae in several pools, grassy, sedgy, sphagnaceous along 

 a dense woody border below Mr. P. H. Emlie's lake at Lakehurst. The follow- 

 ing trees and shrubs were in the wooded edge where numerous H. andersonii 

 were calling and taken. The tadpoles also were in the more or less open 

 shrubby areas where Voccinium and Magnolia (small) were common. A few 

 pools were connected with streamlets and water ditches. 



The tadpoles we took June 29 began transforming July 2. This species 

 actively croaks in May in other years. These tadpoles doubtless were at 

 least from eggs hatched in the first half or middle of May. My determination 

 is from comparative experience with Hyla squirella, Hyla femoralis, Hyla 

 cinerea, Hyla gratiosa, Hyla arenicolor and Hyla crucifer. At the time 

 at Lakehurst we concluded 50-75 days a probable larval period. Noble and 

 Noble found transformation July 23. If these transforming frogs were from 

 eggs of May 20 or June 4, we have 49-64 days for larval period. Transforming 

 frogs of July i and 2 apparently from earlier seasonal oviposition might take 

 10 or more days longer. 



TRANSFORMATION 



Period. Messrs. Davis and Chapin found this species transforming from 

 tadpoles to frogs July 21, 1906 (Davis, 1907, pp. 49, 50). On June 29 the 

 author and Mrs. Wright found a few tadpoles with two legs well developed 

 and by July 2-4 they began to transform and travel about my screened porch. 

 The last transformed July 15. The bulk of these tadpoles at Lakehurst must 

 have transformed by July 15-30. Noble and Noble found them transformed 

 July 23, 1923. The eggs taken by Barbour (1916, pp. 6, 7) JulJ^ 8 doubtless 

 would not have changed to froglets until August 25 or September i. Judging 



