Structure: Form delicate; skin smooth; canthus rostralis well 

 marked, but not sharply edged; throat of male raw sienna or yellow 

 with light area of greenish on either side; vocal sac, a large hyaline 

 subgular pouch. 



Voice: This call is a harsh trill, regular, mostly continuous, 15 

 calls in 10 seconds, but not very loud. It could not be heard a few 

 rods away. One gave 67 pumps in 45 seconds. 



Breeding: They breed from April to August. The eggs, single on 

 the bottom of shallow pools are brown above and cream below, with 

 outline distinct and jelly firm. The egg is 1/30-1/25 inch (0.8-1.0 

 mm.), the inner envelope 1/20-1/15 inch (1. 2-1.6 mm.), the outer, 

 1/16-1/12 inch (1.4-2 mm.). The egg-complement is 950. The citrine 

 drab tadpole is small, 1 1/4 inches (32 mm.), its tail long, the tail tip 

 acuminate with a flagellum. The tooth ridges are 2/3. After a tadpole 

 period of 40 to 50 days, they transform from June to September at 

 7/16 inch (n-13 mm.). 



Notes: July 3, 1922. Along the Folkston Road, Ga., in temporary 

 pools and ditches with Bufo terrestris were plenty of Hyla squirella. 

 There is more vibration in the call of Hyla femora/is. I could not hear 

 the Hyla squirella a few rods away. The calls of Hyla femoralis and 

 Bufo quercicus drown it out. Hyla squirella does sometimes croak 

 from the water surface when sprawled on the water. 



On August 11, 1922, at Camp Pinckney, Ga., 2-3 p. m., we heard 

 several. At 8:30 we returned to Camp Pinckney. There were no end 

 of Hyla squirella, countless males on the ground in a road filled with 

 temporary pools, in water 1-3 inches deep. The vocal sac is hyaline, 

 more or less inflated for some time. The call is not so fast as in Hyla 

 femoralis, but swift nevertheless. Those in water were greenish, those 

 at the edges of the pool or in the road, brownish. . . . We could find 

 no females. Some males, though quite small, were croaking. 



In general, this species calls even by day in rain or before an im- 

 minent rain. 



Okefinokee Swamp, Georgia. On July 3, 1922, about 11:55 p. m., 

 we were at Anna's pond. We heard the Hyla squirella at a distance 

 between two distant houses. In the saw palmettos and the grass 

 stools were many scrapers. We found one pair in the grass near the 

 edge. Others were found in saw palmettos about the border of the 

 pool. The same night, near Trader's Hill, we came to a grassy over- 

 flow pond. In a clump of bushes and saw palmetto were several Hyla 

 squirella. In grassy stools in shallow water were others. 



129 



