J30 CALIFORNIA ACADEMY OF SCIENCES [ P»oc. 4th Se». 



Type locality — Mexican boundary monument no. 258, shore 

 of Pacific Ocean, near Tia Juana, San Diego County, Califor- 

 nia. 



Range — Apparently Upper Sonoran zone close to the ocean 

 shore ; known only from tlie type locality, and from a similar 

 place in the extreme northwestern corner of San Diego County 

 (Stephens, Calif. Mammals, 1906, p. 165). 



Perognathus bombycinus Osgood 

 Yuma Pocket Mouse 



Original description — Perognathus bombycinus Osgood, 

 Proc. Biol. Soc. Wash., 20, February 23, 1907, pp. 19, 20. 



Type locality — Yuma, Arizona. 



Ra)ige — Lower Sonoran zone in extreme southeastern 

 corner of Imperial County : vicinity of Pilot Knob ( Mus. Vert. 

 Zool.). 



Perognathus longimembris longimembris (Coues) 

 San Joaquin Pocket Mouse / 



Origi)ial description — Otognosis longintembris Coues, Proc. 

 Acad. Nat. Sci. Phila., August. 1875. p. 305. 



Type locality — Fort Tejon, Kern County, California. 



Synonyms — Perognathus inornatus Merriam, N. Amer. 

 Fauna, 1, October, 1889. p. 15 (type from Fresno, California) ; 

 Cricetodipus parvus; Perognathus pan'us. 



Range — Sonoran zones in the San Joaquin and Sacramento 

 valleys, from Fort Tejon, Kern County, north to Sites, Colusa 

 Countv (Mus. Vert. Zool.: Tavlor, Univ. Calif. Publ. Zool., 

 10, 1912, pp. 156, 162). 



Perognathus longimembris neglectus Taylor 

 McKittrick Pocket Mouse 



Original description — Perognathus longi)nembris neglectus 

 Taylor. Univ. Calif. Publ. Zool, 10. May 21, 1912. p. 155. 



Type locality — McKittrick, Kern County, California. 



Range — Lower Sonoran zone on west side of southern San 

 Joaquin \'alley : vicinity of McKittrick, Kern Coimty, and 

 Simmler. Carrizo Plain, San Luis Obispo County (Mus. Vert. 

 Zool.). 



