Mr. Heller and Mr. Ooolidge took a number of thia-'species in"tlie 

 ■San Bernardino Mountains, San Bernardino county, Cal., during the 

 summer of 1897. Several [3304, 3306-3308] have been taken at Hodg- 

 don'a, near Crocker's, Tuolumne county, and [3310-3313, SolB, 3B16] 

 between Wawona and Yosemite Valley, Cal. 



Several of the following specimens have less than forty-six scale 

 rows between tiie head and base of tail: [2775] Plains between Bliss 

 and Snake River Idaho; [2802] Sage brush plain, nearConant, Cassia 

 county, Idaho; [2S10, 2814] Sage brush plains, between Shoshone and 

 Blue Lalies, Idaho; and [2821, 2822] Blue Lakes Canon, Logan coun- 

 ty, Idaho. 



12 Soalopoma occldentalis BAIRD & GIRARD. The fol- 

 lowing key sums ud, according to Mr. Van Denl)Urgh,+ the difference 

 between Sceloporus occidenlalis (.Baird & Girard) and iSceloporusbiseri- 

 atus (Hallowell) : 



"Males with a blue patch on each side of the throat, usually 

 smaller S. occldentalis " 



■'Males with one blue patch on center of throat, usually larger 

 N. Mseriatm." 



Later, on pages 82-83, he states that S. biieriatus "occupies the 

 coast region south of the range of Sceloporus occidenlalis and both 

 slopes of the Sierra Nevada, together with portions of the San Joaquin 

 Valley and the desert ranges farther east. How far north it lives on 

 the western slope of the Sierra Nevada and where it meets Sceloporus 

 occidentalism we do not know. It doubtless occurs throughout the 

 whole length of the (ireat Basin, for it is common in Idaho. Its ver- 

 tical ^ange in Central California extends up to about 8.(_00 feet." 



The Zoological Department of Stanford Univeriity contains 

 about 700 specimens, of which about 470 are tlie northern occldentalis 

 and 330 the southern biseriatus. 



Among the former, however, we find a number of specimens 

 collected in Northern California which have but one throat spot. 

 These are : 



KUMBER. LOCALITY. 



3769 and 3770. Quincy, Plumas county, Cal. 



3532 and 3540. Warm Springs Creek, near Skagg's Springs, Sonoma 



county, Cal. 

 3688. Gasquet's, Del Norte county, Cal. 



3559 and 3560. Mountains near JEtna. Springs, Napa county, Cal. 

 3548 and 3549. Albion River, two miles below Comptche, Mendocino 



county, Cal, 

 3552 and 3555. Navarro River, near Boonville Mendocino county, 



Cal. 

 3556 and 3557. Knight's Valley Creek, near Kellogg, Sonoma county, 



Cal. 

 3567 and 3594. Garberville, Humboldt coiinty, Cal. 

 369^ Along road between White Thorn and Garberville, 



Humboldt county, Cal. 

 3667 and 3666. Road between White Thorn and Briceland, Humboldt 



county, Cal. 

 Mr. Van Denburgh states in a note on page 73 of his work: "I 

 have examined many hundreds of S. occidenlalis and S. biseriatus and 

 have not found a male of the latter with two wliite throat patches. 

 Highly colored males of S. occidedtalis are sometimes found in which 

 . the two blue patches have extended to, and evn merged on, the 

 the medium line, but by securing very young, or less brilliantty col- 

 ored, males there should be no difficulty in determining which" spe- 

 cies occurs in a given locality, for sucn males never have a single 



tOcc. Papers Gala. Acal. Soi., V. 1897, pp. 73-74. 



