[16] PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 599 



<. Thomomys talpoides bulbivorus, (Richardson) Coues. Pacific Pocket-Gopher. 

 Pacific region. 

 Thomomys talpoides umbrinus, (Richardson) Coues. Southern Pocket-Gopher. 



Lower Californiaii and Sonoran regions. Southern Central region. 

 Texan district. 

 f Geomys tuza, (Ord) Coues. Salamander. Florida Pocket-Gopher. 

 Georgia, Florida and Alabama. 



Greomys bursarius, (Shaw) Richardson. Common Pocket-Gopher. 



Eastern Mississippi Valley and northward. 

 , Greomys castanops, (Baird) Le Conte. Pecos. Chestnut Pocket-Gopher. 

 Texas and New Mexico. 



Geomys mexicanus, (Licht. ) Baird. Tucan. Mexican Pocket-Gopher. 



Mexico. 

 1 Geomys hispidus, Le Conte. Quackil. Central American Pocket-Glopher. 

 Mexico and Central America. 



Family SACCOMYID.^. The Pouched Rats. 



Perognathus monticola, Baird. Mountain Pocket Mouse. 



Utah to Northern California. 

 Perognathus penicilliatus, Woodhonse. Tuft-tailed Pocket Mouse. 



Basin of the Colorado Eiver. 

 Perognathus fasciatus, Max. zu Wied. 



United States, between the Mississippi Eiver and Rocky Mountains. 

 Northern Mexico. 



Perognathus hispidus, Baird. Hispid Pocket Mouse. 



Tamaulipas, Mexico. 

 Cricetodipus parvus, Baird. Least Pocket Mouse. 



United States, west of the Rocky Mountains. 



\!ricetodipu8 flavus, Baird. Yellow Pocket Mouse. 

 Rocky Mountain Region southward into Mexico. 



r Dipodomys Phillipsi Ordii, (Woodhouse) Coues. Ord's Pocket Rat. '•Kangaroo 

 Rat." 



Rocky Mountain Region. 



Dipodomys Phillipsi Phillipsi, (Gray.) Phillips' Pocket Rat. "Kangaroo Rat." 



Washington Territory to Mexico. 



Heteromys anomalus, (Thompson). 



Antilles and Trinidad. 

 Heteromys longicaudatus. Gray. 



Mexico to Venezuela. 

 Heteromys Desmarestianus, Gray. 



Guatemala. 



