GEOMYID^ 147 



Thomomys angularis pascalis Me;rriam. 



FRESNO POCKET-GOPHER. 



Similar to angularis but smaller; above more buffy yellow; 

 below very much paler and often marbled with patches of white; 

 skull smaller and smoother. 



Length 2IO mm. (8.25 inches) ; tail vertebrae 70 (2.75); 

 hind foot 30 (1.18). 



Type locality, Fresno, California. 



Thomomys operarius Merriam. 



OWEN VALLEY POCKET-GOPHER 



Above buffy yellowish or buff gray; below plumbeous 

 strongly washed with white; skull short, broad and massive; 

 rostrum short and broad ; interorbital region broad ; temporal 

 ridges well marked. 



Length 217 mm. (8.50 inches) ; tail vertebrae 67 (2.65) ; 

 hind foot 29 (1.15). 



Type locality, Keeler, Inyo County, California. 



Thomomys cabazonae Me:rriam. 



CABEZON POCKET-GOPHER. 



Above varying from buffy ochraceous to dull drab brown; 

 below whitish or pale salmon; skull small, angular; zygomata 

 broadest anteriorly; interparietal rectangular; nasals long. 



Length 220 mm. (8.25 inches); tail vertebrae 78 (3.06); 

 hind foot 30 ( i . 1 5 ) . 



Type locality, Cabezon, San Gorgonio Pass, Riverside 

 County, California. 



Thomomys fuscus fisheri Mkrriam. 



FISHER POCKET-GOPHER. 



Similar to fuscus but very much paler, grayish brown in- 

 stead of dull fulvous brown; skull similar to that of fuscus but 

 shorter; zygomata more squarely spreading; premaxillae shorter 

 and broader posteriorly ; bullae less swollen ; incisors narrower. 



Length 192 mm. (7.60 inches); tail vertebrae 58 (2.30); 

 hind foot 25 (i). 



Type locality, Beckwith, Plumas County, California. 



