336 University of California PuMicatioiis in Zoology. [Vol. 7 



Species Appabently Breeding both in Upper Sonoran and Transition 

 IN THE Northern Nevada Region 



Birds 

 Zenaidura macroura carolinensis Pipilo maculatus curtatus (occurred 



Myiochanes richardsoni richardsoni only in area of zonal overlap- 



Spizella passerina arizonae ping) 



Spizella brewer! Passerina amoena 



Melospiza melodia montana Dendroica aestiva brewsteri 



Oreoscoptes montanus 

 Planesticus migratorius propinquus 



Mammals 

 Eutamias pictus Erethizon epixanthum 



Peromyscus maniculatus sonoriensis Canis lestes 



Perognathus parvus olivaceus 



Septiles 

 Sceloporus graciosus Thamnophis vagrans 



Species Apparently Limited to Pure Transition in the Northern 



Nevada Region 



1. 



Birds 

 Oreortyx picta plumifera Oreospiza chlorura (possibly rang- 



Selasphorus platycercus ing into Upper Sonoran) 



Cinclus mexicanus unieolor 



Mammals 

 Citellus oregonus Microtus intermedius 



Nearly all the forms following proved to be breeding in the 

 Pine Forest Mountains. 



Species Known to Breed Elsewhere in Canadian 



Birds 



Carpodacus cassini Dendroica auduboni auduboni 



Spinus pinus Oporornis tobniei 



ZonotricMa leucophrys leucophrys Peuthestes gambeli gambeli 



Junco hyemaUs thurberi Hylocichla ustulata swainsoni 



Passerella iliaca schistacea Planesticus migratorius propinquus 



Vermivora celata orestera Sialia currueoides 



Mammals 



Odocoileus hemionus Canis lestes 



Marmota flaviventer Putorius cicognani 



Callospermophilus (various species) Putorius arizonensis 



Peromyseus maniculatus sonoriensis Sorex palustris navigator 



Microtus moruax Myotis lucifugus longicrus 

 Erethizon epixanthum 



