108 ZOOLOGY. 



ARVICOLA (PEDOMYS) AUSTEEUS, LeC. 



Arvicola austems, LeC, P. A. N. S. P., vi, 1853, 405 ("Wisconsin). 



Arrieola (Pedomys) austerus, liD., M. N. A., 1857, 531.', pi. liv (Wisconsin and Missouri 



to Louisiana).— Coues, Proc. Acad. Nat. Sci. Pliila., 1874, 190. 

 Arvicola (Pedomys) cinnamoma, Ed., op. cit, 541, pi. liv (Minnesota). 

 Arvicola (Pedomys) haydeni, Bd., vp. cit., 543 (Nebraska). 



Had. — Western States and adjoining Territories, especially Illinois, Missouri, and 

 Michigan. Kansas. Louisiana. 



AEVICOLA (PEDOMYS) AUSTEEUS CUETATUS, (Cope) Coues. 



Arrieola curtata, Cope, Pr. A. N. S. Phila., Jan., 18G8, 2 (Owen's Valley, California). 

 Arvicola paupcrrima, Coo PEE, Am. Nat., ii, Dec, 1808, 535 (Washington Territory). 



Hab. — United States, west of t lie Mississippi. California. Colorado. Kansas and 

 Nebraska, where becoming mixed up witb true austerus. 



We ascertain, by inspection of the type specimens of both, that Dr. 

 Cooper's species is the same as Prof. Cope's. 



Genus FIBER, Cuvier. 



Castor, Linn., S. N., i, 17CC, 78 (not type). 

 Mits, Gm., S. N., i, 1788 (not type). 



" Myocastor, Keek's Linn., 1792", partly (type, Myopotamus coypus). 

 Fiber, CUV., Ltcons, i, 1800 (type, Castor zibethicus, L.). 

 Lemmas, Fischer, Syn., 1829 (partly). 

 Ondatra, Wateeh., Cliarlesw. Mag., iii, 1839 (type, 0. zibethicus). 



FIBEE ZIBETEICUS. (L.) Cuv. 



Cantor zibethicus, Linn., S. N., i, 1700, 79. 



21 us zibethicus, Gm., S. N.,i, 1788, 125. 



Myocastor zibethicus, " Kerr's Linn., 1792". 



Fiber zibethicus, Ctrv., E. A., i, 1817, 172; and of authors. 



lemmas zibethicus, Fisch., Syn., 1829, 289. 



Ondatra zibethicus, WATEKH., Charlesw. Mag., iii, 1839, 594. 



Fiber osoyensis, Lord, P. Z. S., 1803, 95 (British Columbia). 



Hab. — North America. 



Found throughout entire area of North American continent, Seen by 

 members of the expedition, but none secured. Common upon all the streams 

 throughout the Territory of Utah ; a. great number being captured every 

 year for their skins, which meet with a ready sale in Salt Lake City. 



