374 nYLi.DiE. 



form of IT. 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 millim. 

 Tejon Pass, California. 



47. Hyla regilla. 



Hyla regilla, Baird 8f Gir. Proc. Ac. Philad. 1852, p. 174, & 1853, 

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

 Brocchi, Bull. Soe. Philom. (7) i. p. 127. 



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



p. 97, and U.S. B. B. Surv. x., Williamson' 's Bep., Bept. p. 21. 



Tongue subcircular, slightly nicked, and free behind. Vomerine 

 teeth in two groups on a level with the hinder edge of the choanse. 

 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. S 2 • Vancouver's Island. J. K. Lord, Esq. [P.]. 



c, d-h. j , hgr., & yg. Vancouver's Island. Col. Hawkins [P.]. 



i-n. 2 > u o r, > & JS- ^an Juan, New Orcades. H.M.S. 'Plumper.' 



o. g. Sumass Prairies. Boundary Coram, 



p. § . Nassa Creek, California. 



q-r. Hgr. California. 



48. Hyla fusca*. 



Hyla fusca, Baud. Bain. p. 43, and Bept. Tiii. p. 5 ; Bum. § Bibr. 



p. 573. 

 Calamita fuscus, Mvrr. Tent. p. 170. 



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



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

 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, 



