B74 WYLIDA. 
form of H. versicolor, but the extremitie¢ more slender. Back 
covered with minute pustulations. Uniform light grey above; a 
considerable number of dark-coloured subcircular spots, about a line 
in diameter, scattered over the upper part of the body and upon the 
sides, in some specimens mingled with irregular blotches upon the 
back ; lower surfaces immaculate. From snout to vent 40 millim. 
Tejon Pass, California. 
47. Hyla regilla. 
Hyla regilla, Baird § Gir. Proc. Ac. Philad. 1852, p.174, & 1853, 
p. 801; Girard, U.S. Explor, Exp., Herp. p. 60, pl. 3. f. 18-18 ; 
Brocchi, Bull. Soc. Philom. (7) 1. p. 127. 
scapularis, ZZallow. Proc. Ac. Philad, 1852, p. 183, & 1854, 
p. 97, and US. R. R. Surv. x., Williamson’s Rep., Rept. p. 21. 
Tongue subcircular, slightly nicked, and free behind. Vomerine 
teeth in two groups on a level with the hinder edge of the choane. 
Head moderate, broader than long; snout rounded, about as long 
as the diameter of the orbit; canthus rostralis distinct; loreal 
region not concave; interorbital space as broad as the upper eyelid ; 
tympanum distinct, half the diameter of the eye. Fingers with a 
slight rudiment of web; toes half webbed; disks a little smaller 
than the tympanum; subarticular tubercles moderate; a distinct 
fold along the inner edge of the tarsus. The hind limb being 
carried forwards along the body, the tibio-tarsal articulation reaches 
the eye. Upper surfaces with small smooth warts ; lower surfaces 
granulate ; a strong fold across the chest. Olive or greenish above ; 
a dark streak on each side of the head, through the eye, becoming 
much broader behind the latter; generally a few dark spots on the 
upper surface of body and dark bands across the limbs; beneath 
immaculate. Male with an external subgular vocal sac. From 
snout to vent 37 millim. 
Western North America; (Vera Paz?). 
a-b. 3. Vancouver's Island. J. K. Lord, Esq. [P.]. 
c,d-h. 9, hgr., & yg. Vancouver's Island. Col. Hawkins [P. }. 
i-n, 9, her.,& ye. San Juan, New Orcades. H.M.S. ‘Plumper.’ 
0 6. Sumass Prairies. Boundary Comm, 
p. &. Nassa Creek, California. 
g-r. Her. California. 
48. Hyla fusca*. | 
Hyla fusca, Daud. Rain. p. 48, and Rept, viii. p. 55 Dum. § Bibr. 
p. 573. 
Calamita fuscus, Mer. Tent. p. 170. 
Tongue circular, nicked, and free behind. Vomerine teeth in two 
* The specimen mentioned under this name in the ‘Catalogue of Batrachia 
Salientia’ is evidently of a quite different species. This I have not been able 
to identify with any of those described. The specimen is in a bad state of pre- 
servation, 
