254 



University of California Publications. 



[Geology 



APLODONTIDAE 

 APLODONTIA ALEXANDRAE Furlong 

 Aplodontia alexandrae Furlong, Univ. Calif. Publ. Bull. Dept. Geol., 

 vol. 5, pp. 397-403, figs. 1 to 5c, 1910. 



Occurence : Eare in Virgin Valley Beds, Virgin Valley, Ne- 

 vada; numerous specimens found in the Thousand Creek Beds, 

 Thousand Creek, Humboldt County, Nevada. 



MYLAGAULIDAE 

 MYLAGAULUS MONODON Cope 



Mylagaulus monodon, Kellogg, Miss Louise, Univ. Calif. Publ. Bull. 

 Dept. Geol., vol. 5, p. 427, figs. 9a to 106, 1910. 



Occurrence : Virgin Valley Beds, Virgin Valley, Nevada ; 

 Thousand Creek Beds, Thousand Creek, Humboldt County, 

 Nevada. 



MYLAGAULUS PRISTINUS Douglass 



Mylagaulus pristinus, Kellogg, Miss Louise, Univ. Calif. Publ. Bull. 

 Dept. Geol., vol. 5, p. 429, figs. 11« to 12b, 1910. 



Occurrence : Virgin Valley Beds, Virgin Valley, Humboldt 

 County, Nevada. 



CASTORIDAE 

 EUCASTOR LECONTEI (Merriam, J. C.) 



Eucastor lecontei (Merriam), Kellogg, Miss Louise, Univ. Calif. Publ. 

 Bull. Dept. Geol., vol. 5, p. 430, fig. 13, 1910. 



Occurrence : Thousand Creek Beds ?, at Thousand Creek, 

 Humboldt County, Nevada. 



DIPOIDES, sp. 



Dipoides, sp., Kellogg, Miss Louise, Univ. Calif. Publ. Bull. Dept. Geol., 

 vol. 5, p. 431, fig. 14, 1910. 



Occurrence : Thousand Creek Beds, Thousand Creek, Hum- 

 boldt County, Nevada. 



GEOMYIDAE 

 ENTOPHTYCHUS MINIMUS Kellogg 



Entophtychus minimus Kellogg, Univ. Calif. Publ. Bull. Dept. Geol., 

 vol. 5, p. 431, fig. 15, 1910. 



Occurrence : Thousand Creek Beds, Thousand Creek, Hum- 

 boldt County, Nevada. 



