104 REPORT OF NEW JERSEY STATE MUSEUM. 
Hylodes gryllus Holbrook, N. Am. Herp., III, 1838, p. 75, 
Pl. 13 (eet. mers). Holbrook, cysKd; 2, TV, 1842. piram 
Pl. 33.—Abbott, Geol. N. J., 1868, p. 805. 
Rana dorsalis Harlan, Med. Phys. Res., 1835, p. 105, fig. I 
[on plate opposite p. 72]. 
Genus Hyra, Laurent. 
The True Tree Toads. 
Key to the species. 
a. Patches of vomerine teeth posterior to line between interior nares. 
PICKERINGII 
aa. Patches of vomerine teeth on a line with interior nares. 
b. Phalanges of fourth toe with 3 free from web. ANDERSONII 
bb. Phalanges of fourth toe with 2 free from web. VERSICOLOR 
Hyla pickeringii (Holbrook). 
PLATE 22! 
Pickering’s Tree Toad. Peep. Peeper. 
Head measured to posterior edge of tympanum, 3 in body to 
end of trunk, not including hind limbs; depth about 3 normally ; 
greatest width of body 244; snout a trifle over 2 in head; eye 
234; mouth about 1*/,); width of mouth about equal to length 
of head; interorbital space measured from eye-sockets 2%; fore 
limb about 2 in head and trunk; head and trunk about 174 in 
hind limb. Body broad, depressed both above and below, and 
when viewed from above of somewhat ovoid pattern, with 
greatest bulge a trifle posterior to middle of length of head and 
trunk. Constriction posteriorly greater than that anteriorly, 
which is obtuse. Form broad above, especially anteriorly, other- 
wise slender, and pelvic bones barely forming an angle at last 
3g of head and trunk. Head broad, rather large, well de- 
pressed both above and below, and obtuse in front. Snout 
short, broad, convex both over surface and in profile as viewed 
