374 HTLIDiB. 



form of H. versicolor, but the extremities 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 miUim. 

 Tejon Pass, CaUfomia, 



47. Hyla regiUa. 



Hyla regilla, Baird Sf Gir. Proe. Ac. PhUad. 1852, p. 174, & 1853, 

 p. 301 ; Oirard, U.S. Explor. Exp., Herp, p. 60, pi. 3. f, 13-18 ; 

 Broechi, BuU. Soc. Philom. (7) i. p. 127. 



scapularis, Hallow. Proc. Ac. Philad. 1852, p. 183, & 1854, 



p. 97, and U.S. 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 choanae. 

 Head moderate, broader than long j 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 miUim. 



Western North America; (Vera Paz?). 



a-b. c5' 2- Vancouver's Island. J. K. Lord, Esq. [P.], 



r,d-li. $,hgr., &yg. Vancouver's Island. Col. Hawkins [P.]. 



i-n. $,hgr., &yg. San Juan, New Orcades. H.M.S. 'Plumper.' 



V. (J . Sumass Prairies. Boundary Oomm. 



p. 2 ■ Nassa Creek, California. 



q-r. Hgr, California, 



48. Hylafusca*. 



Hyla fusca, Baiid. Rain. p. 43, and Rept, viii. p. 5 : Dum. &■ Bibr. 



p. 673. ^ ^ 



Calamita fuscus, Merr. Tent. p. 170. 



Tongue circular, nicked, and free behind. Vomerine teeth in two 



* The specimen mentioned under this name in the ' Catalogue of Batraohia 

 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, *^ 



