Mat, 1803. 



REPTILES OF THE DEATH VALLEY EXPEDITION. 



200 



The present form has undoubtedly as much right to a separate name 

 as Bascanion piceum Cope, the chief character of which, in addition to 

 the uniforn dusky coloration above, seems to be the nineteen scale- 

 rows of the type and only specimen hitherto recorded, against the nor- 

 mal seventeen rows in B. fiagellum and its allies. I have, however, 

 before me a specimen ( U. S. Nat. Mus., No. 17950) collected by Mr. P. L. 

 Jouy, near Tucson, Ariz., which, though evidently by color a B. piceum, 

 has only seventeen scale rows. 



Of the specimens collected, No. 18088 is particularly interesting, as 

 having an undivided anal. The fact that an undivided anal has been 

 observed several times in B. fiagellum and allies is quite an argument 

 in their favor who would not attribute ' generic value' per se to the 

 division or nondivision of the anal plate. 



List of specimens of Bascanion fiagellum frenulum. 



U.S. 



Nat. 

 Mus. 

 No. 



Sex 

 and 

 age. 



Locality. 



Alti- 

 tude. 



Date. 



Collector. 



Remarks. 



18081 



jun. 



jun. 





Feet. 



May . 6 

 May 1 

 Jan. 21 

 June 20 

 May 15 

 Apr. 22 



Sept. 27 



June 12 

 June 9 



Merriam 



....do 



Nelson 



Fisher 



Nelson 



Merriam 



Stephens ... 



Palmer 



Merriam 





180S2 









18083 

 1K084 



Death Valley, Bennett AVells, Calif. 







18085 





4, 100 





18086 

 18087 

 18088 



Panamint Valley, Hot Springs, 



Calif. 

 Colorado Desert, Palm Springs, 



Calif. 



Sitornys in stom- 

 ach. 



180S9 







Head only. 









Bascanion laterale (Hallow.). 



Three typical specimens were collected on the west or coastal slope 

 of the Sierra Nevada and Tejon Range, California, and one from the 

 western slope of the Coast Range, in San Diego County, Calif. 



This species seems to be comparatively rare, and considerable addi- 

 tional material is necessary to enable us to satisfactorily map out its 

 geographical distribution. 



List of specimens of Bascanion laterale. 



U.S. 

 Nat. 

 Mns. 

 No. 



Sex 

 and 



age. 



18077 

 18078 

 18079 

 18080 







1 



Locality. 



Old Fort Tejon, Calif 



Three Rivers, Calif 



Walker Pass, west slope, Calif. 

 Santa Ysabel, Calif 



Alti- 

 tude. 



Date. 



July 2 



Sept. 14 



July 3 



Oct. 6 



Collector. 



Palmer .. 

 Bailey . . . 



Fisher... 

 Stephens 



Remarks. 



12731— No. 7- 



-14 



