1916] Dice: Land Vertebrates of Southeastern Washington 315 



Evotomys gapperi saturatus. 

 Microtus mordax mordax. 

 Thomomys fuscus fuscus. 

 Zapus princeps oregonus. 

 Callospermophilus chrysodeirus 



chrysodeirus. 



Sciurus hudsonicus richardsonii. 

 Lepus bairdii bairdii. 

 Odocoileus hemionus hemionus. 



The Blue Mountain fauna contains a number of species which in 

 southeastern Washington are not found in the other faunal areas. 

 Many of these species are characteristic of conifer forests elsewhere. 



ROCKY-SLOPE HABITAT AND ASSOCIATIONS (BLUE MOUNTAIN~AREA) 



Exclusive : 



Salpinctes obsoletus obsoletus summer. 

 Major : 



Peromyscus maniculatus gambelii. Callospermophilus chrysodeirus 



chrysodeirus. 

 Minor : 



Falco sparverius sparverius 



summer. 

 Thomomys fuscus fuscus. 



Citellus columbianus columbianus. 

 Eutamias amoenus amoenus. 



Outcroppings of basaltic rock are common in the Blue Mountains. 

 Besides the numerous small rock bluffs there are many rocky slopes 

 covered by broken pieces of rock of various sizes. These rocky slopes 

 often cover large areas. On exposed slopes grasses and small shrubs 

 such as ninebark (Opulaster pauciflorus) grow among the rocks and 

 in many places there are scattered yellow-pine trees (Pinus ponde- 

 rosa). The habitat in such places often gradually gives way to the 

 yellow-pine forest habitat. 



Seventy-eight traps set on a rocky slope near Hompeg Falls cap- 

 tured 23 Peromyscus maniculatus gambelii and 2 Eutamias amoenus 

 amoenus on July 24, 1914. 



YELLOW-PINE HABITAT AND ASSOCIATION (BLUE MOUNTAIN AREA) 



Minor : 



Dendrapagus obscurus richardsoni 



resident. 

 Falco sparverius sparverius 



summer. 



Sphyrapicus thyroideus summer. 

 Empidonax wrighti summer. 

 Corvus brachyrhynchos hesperis 



summer. 

 Spizella passerina arizonae 



summer. 



Junco hyemalis shufeldti summer. 

 Reported : 



Sialia mexicana occidentalis summer. 



Piranga ludoviciana summer. 

 Penthestes gambeli gambeli 



summer. 

 Planesticus migratorius propin- 



quus summer. 

 Sialia currucoides summer. 

 Peromyscus maniculatus gambelii. 

 Thomomys fuscus fuscus. 

 Eutamias amoenus amoenus. 

 Callospermophilus chrysodeirus 



chrysodeirus. 



