478 PROCEEDINGS OF THE NATIONAL MUSEUM. 



The first mention of a Pacific hyla appears to be that by Baird and 

 Girard, in October, 1852,' who, under "Descriptions of new species of 

 reptiles, collected by the U. S. Exploring: Expedition under the com- 

 mand of Capt.Charlcs Wilkes, U. S. N.," describe llyla ref/illa as follows: 



Ilylaregilla: This is a species of medinin size, tbc! largest individnal observed meas- 

 uring one and a half inch from the nose to tb(! posterior extremity of the body, the lioad 

 itself occupying about half of this length. The hind legs are long and slender, the 

 web extending only to half the length of the longest toe; fingers comparatively 

 long. The general color is green above, turning to orange yellow along the sides of 

 the head, abdomen, and legs. Two oblong, brownish black spots exist on the occiput, 

 from which two vittie (<me pair) of the sauu; black color extend along the dorsal 

 region ; a similar band passes from the tip of the nose, across the eye and tympanum, 

 and along the iibdomen, when it is interrupted, and forms a series of black iind irreg- 

 ular smiill si)ots. In the immature state, green is the prevailing color, a few black 

 spots being present along the whitish abdomen. Sixjcimens of this species were 

 collected on Sacramento Kivor, in Oregon and on Pnget Sound. 



Two of these specimens still e.xist in a moderate state of preservation 

 in thelJ. S. Nati(mal Museum (iollection as Nos.DlSU, from Pu^et Sound, 

 Washington, and 15405, from Sacramento River, California. 



Described in the same month as Hyla rcyilla., but a little later,' is Hyla 

 scapularin,hy Ilallowell, from Oregon. After an anatomical description, 

 in which attention is calhul to the grannlations on the body, a ])oint 

 omitted by Baird and Girard, although their s])et;nnens ])ossess rough 

 skins, there is the following in regard to the skin : 



Ground color above greenish olive, presenting numerous irregular bluish blotches 

 upon the suiface; several deeper colored blotihes upon the sides; a bluish vitta, 

 about two-thirds of ii line in ))readth, extends from the posterior part of the eye 

 along the sides of the neck over the shoulder, a short distance beyond which it termi- 

 nates; upper surface of extremities marked with bluish spots. 



This specimen was not examined and may not now be in existence. 



The next mention is by Baird and Girard in February, 1853, ' where, 

 in a list of re[)tiles collected in California by Dr. John L. Le Conte, 

 Hyl<( rcgilla is included, and Hyla scapularis given as a synonym. 



Following this, in July, 1854,^ Hallowell describes Hyla nehulosa from 

 two specimens collected at Tejon Pass, (California, by Dr. A. L. Ileer- 

 mann. The granulations and other anatomical peculiarities are men- 

 tioned, and the color is described: 



Uniform light gray upon the upper part of the body and sides; snout light ash; 

 a considerable number of dark colorud subcircular spots, about a line in diameter, 

 scattered over the upper part of the body and u]»ou the sides, in some specimens 

 mingled with irregular blotcla^s ui)on tlie back; extremiti(!S, ash cidor above, with 

 grayish spots; abdomen greenish yellow; chin light yellow; under surface of 

 extremities orange colored. 



One of these specimens still exists in a very poor condition in the 

 National Museum collection as No. 3230, which will be spoken of again. 



' Proc. Phila. Acad. Nat. Sci., VI, p. 174. 

 2 Idem, VI, p. 183. 

 •'Idem, VI, p. 301. 

 "Idem, VII, p. 96. 



