14. GERRHONOTUS 439 



has been taken in Whatcom (New Whatcom), Snohomish 

 (Darrington), King (Seattle, Kirkland), San Juan (San 

 Juan Islands), and Kitsap (Port Townsend, Gorse Creek), 

 Clark, Kittitas (Easton), and Stevens (Lower Kootenay 

 River), counties. 



In Oregon, specimens have been collected in Clatsop 

 (Seaside), Multnomah (Portland), Lane (Vida), Coos 

 (Empire, Marshfield), Douglas (Camas Mountains, Glen- 

 dale), Jackson (Prospect), and Curry (Port Orford, Cor- 

 bin) counties. 



In California, it has been found only in Del Norte 

 County (near Crescent City, both on the mainland and on 

 Whale and Castle Rocks). 



Remarks. Specimens from Del Norte County are typi- 

 cal G. principis. G. coeruleus is the species of Humboldt 

 and Shasta counties and of the coast region thence south to 

 Monterey County. 



Intergradation of these two species might well be ex- 

 pected in the region about the mouth of the Klamath River, 

 but has not yet been shown. G. principis usually has 14 or 

 14 2/2 longitudinal rows of dorsal scales, while G. coeru- 

 leus occasionally has 142/2 rows, but usually 16. The 

 scales of G. principis also are less strongly keeled, and the 

 coloration is somewhat different, although in this northern 

 portion of its range the coloration of G. coeruleus approaches 

 that of both G. principis and G. palmeri. 



