282 BULLETIN 128, UNITED STATES NATIONAL MUSEUM, 



t*Perognathus penicillatus albulus Nelson and Goldman. 



1923. Perognathus 'penicillatus albulus Nelson and Goldman, 



Proc. Biol. Soc. Washington, vol. 36, p. 159. May 1, 1923. 

 Type Locality. — Magdalena Island, Lower California, Mexico. 



t*Perognathus penicillatus angustirostris Osgood. 



1900. Perognathus penicillatus angustirostris Osgood, North 



Amer. Fauna, No. 18, p. 47. September 20, 1900. 

 Ty'pe Locality. — Carriso Creek, Colorado Desert, Imperial 



County, California. 

 Range. — Colorado Desert; south to northern Lower California 



and east to the Colorado River and southwestern Arizona, 



where it meets the range of pencillatus and pricei. Lower 



Sonoran zone. 



*Perognathus penicillatus pricei (Allen). 



1894. Perognathus pricei Allen, Bull. Amer. Mus. Nat. Hist., 



vol. 6, p. 318. November 7, 1894. 

 1900. Perognathus penicillatus pricei Osgood, North Amer. 



Fauna, No. 18, p. 47. September 20, 1900. 

 Type Locality. — Oposura, Sonora, Mexico. 

 Range. — South central Arizona and northwestern Mexico, west 



of fche Sierra Madre. 



t*Perognathus penicillatus eremicus (Mearns). 



1898. Perognathus (Ghsetodipus) eremicus Mearns, Bull. Amer. 

 Mus. Nat. Hist., vol. 10, p. 300. August 31, 1898. 



1900. Perognathus penicillatus eremicus Osgood, North Amer. 

 Fauna, No. 18, p. 48. September 20, 1900. 



Type Locality. — Fort Hancock, El Paso County, Texas. 



Range. — Extreme western Texas, thence south into north cen- 

 tral Mexico east of the Sierra Madre at least to La Ventura, 

 Coahuila. 



t*Perognathus penicillatus ammophilus Osgood. 



1907. Perognathus penicillatus ammophilus Osgood, Proc. Biol. 



Soc. Washington, vol. 20, p. 20. February 23, 1907. 

 Type Locality. — Margarita Island, Lower California, Mexico. 



t*Perognathus penicillatus siccus Osgood. 



1907. Perognathus penicillatus siccus Osgood, Proc. Biol. Soc. 



Washington, vol. 20, p. 20. February 23, 1907. 

 Type Locality. — Ceralbo Island, Gulf of California, Lower 



California, Mexico. 



t*Perognathus penicillatus seri Nelson. 



1912. Perognathus penicillatus goldmani Townsend, Bull. Amer. 

 Mus. Nat. Hist., vol. 31, p. 122. June 14, 1912. (Not of 

 Osgood, 1900.) 



