150 



BULLETIN 61, UNITED STATES NATIONAL MUSEUM. 



district that hero brid<^os the ojap between the Sierra Nevada-Cascade 

 and coast ranges. That elegans pushes westward in these moun- 

 tains nearly to the coast is shown by specimens from Baird, Shasta 

 County, and several specimens in the U. S. National Museum labeled 

 "Humboldt Eiver" and "Humboldt Bay, California." From the 

 latter records it might seem that elegans reaches the coast in this 

 region, but since specimens from Eureka in the Field ^luseum are 



Fig. 62.— DiSTRiiiUTioN of Thamnophis oedinoides, as indicated by the locality records. 



true ordinoides, as well as some of the Humboldt Bay specimens 

 in the U. S. National Museum, the conclusion is justified that all 

 of the specimens in the latter series were not taken in the innnediate 

 vicinity of the bay, the elegans individuals probably having been 

 taken in the mountains to the eastward. The known range of the 

 form is indicated on the map (fig. 62). 



