480 PROCEEDINGS OF TJU'J NATIONAL MUSEUM. vol.xxi. 



said to bo from San Francisco, T liavo bc(Mi unable to trace. He dis- 

 tinjiuishcs the three v:iri(!ties by their proportions, scdpiddris beiii}^ 

 said to possess a long head and a long body, rcf/illa a short head nnd a 

 long body, and laticeps a short head and a short body, or, according to 

 his key: 



Ilejul cloiij;at«; width enters length of body considerably over thre«> 

 times acapiilariH. 



1 1(^ad short; width ono-third of length retiilla. 



Head short Jiiid broad; breadth eoiitiiinod in total length two and two- 

 thirds tiniis latlcepn. 



It was inability to distinguish s[)oeimens by the eni]>l()ynient of these 

 characters so stated that led to the investigations to be detailed later. 

 The synonymy then stands: 



Hyla regilla liAiRD and GiiiAiii), Proc. Phila. Acad. Nat. Sci., 1852, VI, p. 174. 



Jfjjla 8capiihirin Hai.lowkll, Proc. Phila. Acad. Nat. Sci., 1852, VI, p. 183. 



Hyla nehnlom llAr.LowiCLL, Proc. Phila. Acad. Nat. Sei., 1854, VII, j). !»(). 



Jlj/la HcapulariH var. hypochondriaca Hallowki.l, I'roe. Philii. Acad. Nat. Sci., 



18.54, VII, i).!»7. 

 Hyla vadnvfri.ia Corn, Jonrn. Phila. Aead. Nat. S('i., 18(i(), 2d sor., VI, ]».84. 

 Hyla curia Cone, Proc. Phila. Acad. Nat. Sci., 186<), XVI 1 1, p. 313. 

 Hyla regilla var, laticeps Cope, liullotin 34, U. S. Nat. Miis., 188il, p. 359. 



According to Cope, Hyla regilla is most nearly lelated to ITijla pick- 

 erinffii, 11. stiKircllu, and //. eximia. It has a decided resemblance in 

 shape, and almost exact coincidence in habits, witii picl-erhu/ii., its 

 representative in the Northeast, but it is rather more robust than., 

 squirella, which takes its platte in the South and Southeast. 



Its distribution, as shown by the specimens in the U. S. N'ational 

 Museum collection, is nniinly restricted to the racific watershed, from 

 Vancouver Island and Chilewyuck Lake, Washington, to Cape St. 

 Lucas, and from the coast to the east base of the Cascades and Sierra 

 Nevada. Speci'mens from Walla Walla, Washington, and Chewaucau 

 Valley, and Klamath Lake, Oregon, show that in this region its range 

 is extended well into the desert area of the (Ireat Basin, but in such 

 case following streams which eitlier rise In the Cascades or, like the 

 Columbia, How into the Pacitic. 



A most remarkable extension of its range occurs in the Death Valley 

 region east of Mount Whitney, where Jli/la rrgilla has been collected 

 at isolated springs in desert ranges and valleys more than halfway 

 across the (Jreat Uasin, reaching Vegas Valley, Nevada, the easternmost 

 point recorded.' In this region it has been taken at Hot, Saratoga, 



' Five specimens. No. 11534, long recorded as from "Eastern Colorado," are really 

 from eastern California, the original label bearing "East Cala ," instead of "East 

 Colo.," as it was misread. One specimen, No. 1152!), stated as being eolleited at 

 Ringgold Barracks, Texas, is withont doliuito locality, as that nnmbcr is rightly 

 oecnpied by a specimen of llolbroukia maculata. And No. 11481, one individnal 

 entered in the II. S. National Museum n-gister as from Ogden, Utah, has ])robably 

 been so done by mistake, as the species has not been found in the eastern part of 

 the Creat Basin elsewhere. 



