204 



NORTH AMERICAN FAUNA. 



[No. 7. 



The only specimen (No. 18684) collected is typical in coloration and 

 within the known range of this form. It was obtained by Mr. E. W. 

 Nelson in Yoseinite Valley, California, August 7, 1891. 



Lampropeltis boylii (B. & G). 



The six specimens brought home by the expedition give no occasion 

 for any extended remarks, as they are quite typical in every respect, 

 with no leaning toward var. conjuncta Cope, from Cape St. Lucas and 

 Yuma; calif ornce Blainville, from San Diego, or eisenii Yarrow, from 

 Fresno. 



The two Nevada specimens differ from those from California in having 

 the frontal longer than the interparietal suture, but in a lot of true L. 

 boylii from Fresno (U. S. Nat. Mus. No. 11787) I find a specimen ex- 

 actly like the above from Nevada. 



[This large and conspicuous snake, whose cream colored body is 

 sharply marked by rings of black, was first found in the Valley of the 

 Lower Muddy near an abandoned mill at Overton, Nevada, where sev- 

 eral were secured in dense thickets of Atriplex torreyi. About dark 

 they began to emerge from these retreats, making a great noise in 

 crawling over the dry leaves, and were soon found in the open. The 

 species was obtained also in Pahranagat Valley, Nevada, a little north 

 of the middle of the valley. On the west slope of the Sierra Nevada, 

 in California, specimens were collected in Kern Valley, at Three Rivers, 

 and on the east fork of Kaweah Eiver. — C. H. M.J 



List of specimens of Lampropeltis boylii. 



TJ. S. 



Nat. 



Mus. 



No. 



Sex 

 aud 

 age. 



Locality. 



Alti- 

 tude. 



Date. 



Collector. 



Remarks. 



18090 







Feet. 



July 27 

 ....do ... 



Palmer 



Fisher 



....do 



Bailey 



Merriam 



Bailev 





18091 



do 





18092 



18093 

 18094 



juv. 



South fork, Kern River, 25 miles 



above Kernville, Calif. 

 East i'ork, Kaweah River, Calif 



1,700 



July 9 



July 27 

 May 6 

 ....do ... 



* 



18095 





















Hypsiglena ochrorhynchus Cope. 



The only specimen obtained by the expedition was collected by Dr. 

 A. K. Fisher in Shepherd Canon, in the Argus Range, California, 

 April 24, 1891. It (No. 18071) is somewhat peculiar on account of the 

 small size of the dorsal spots, though otherwise it agrees well with the 

 types from Cape St. Lucas, Lower California, as well as with a number 

 of specimens from Arizona. The characters pointed out by Cope as 

 distinguishing H. chlorophcea, types from Fort Buchanan, southern 

 Arizona, are so variable in the specimens before me that they will not 

 serve the purpose. I am not quite prepared to give up the latter 

 species as yet, inasmuch as the type specimen (U. S. Nat. Mus., No. 



