94 



U. S. NATIONAL MUSEUM BULLETIN 2 06 



greater than width of upper eyelid, greater than distance between 

 nostrils. Tympanum very distinct, equal to one-half the diameter 

 of eye, separated from eye by an interval equal to two-thirds its own 

 diameter. Fingers webbed only at their base, fourth much longer 

 than second, reaching to base of disk of third which covers two-thirds 

 the tympanic area; only a slight tubercular rudiment of a pollex; toes 

 one-half webbed, fifth longer than third, disk of fourth covering two- 

 thirds the tympanic area; a small inner, but no outer metatarsal 

 tubercle; a heavy inner tarsal ridge; a similar ridge across the heel; 

 no dermal appendage on heel. Body rather elongate, in postaxillary 

 region slightly narrower than greatest width of head; when hind leg is 

 adpressed, heel reaches to anterior corner of eye; when hmbs are laid 



Figure 11. — Hyla raddiana raddiana, USNM 12493: a, Dorsum; h, profile; c, foot; d, hand; 



all X 1. 



along the sides, knee and elbow just touch; when hind legs are bent 

 at right angles to the body, heels overlap slightly. Skin of upper parts 

 quite smooth; a slight glandular ridge beginning on canthus rostralis, 

 becoming heavier as it encircles upper border of tympanum, and 

 running diagonally backward and downward behind tympanum to 

 end above the shoulder; a wavy transverse glandular line in front of 

 anus; a faint, glandular line along outside of forearm, another scarcely 

 indicated on tibia; skin of throat and chin slightly granular, that of 

 belly and lower femur very heavily granular; no apparent skinfold 

 across the chest. A pair of external vocal sacs appearing as )(-shaped 

 skinfolds at the sides of the throat. 



Dimensions. — Head and body 48 mm.; head length 14 mm.; di- 

 ameter of eye 4 mm.; width of head 13.5 mm.; femm* 23 mm.; tibia 

 24 mm.; hind limb 75 mm.; fore limb 24 mm. From DZSP 2528, a 

 male of identical head and body length: Foot 22 mm.; hand 15.5 mm. 



