90 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Se«. 



The specimen is a trifle darker than the type of Lynx ruffus 

 calif ornicus, apparently varying somewhat in the direction of 

 L. r. oculeus. 



Peromyscus calif ornicus calif ornicus (Gambel) 



"H[esper(mtys] Calif ornicus/' Cooper, Zoology, in Cronise, 

 The Natural Wealth of California, 1868, p. 444 (General note 

 inserted to cover all Peromyscus listed). 



"Hesperomys calif ornicus Gamb.," Cooper, Proc. Cal. Acad. 

 Sci., 4, 1870, pp. 63, 69. (Peculiar to California; not known 

 to occur north of the latitude of San Francisco Bay). 



"Hesperomys Calif ornicus," Cooper, Amer. Nat., 4, 1871, 

 p. 757. (Monterey). 



Specimens examined. — Eight; Nos. 5835, 5836, Univ. 

 Calif. Mus. Vert. Zool. ; Nos. 8547-8552, U. S. Nat. Mus. 

 No. 5835: original label missing; labelled Hesperomys Cali- 

 f ornicus $ Santa Cruz, Calif., April. No. 5836: original 

 label missing, labelled Hesperomys Californicus, from Los 

 Gatos, Calif., April. The specimens in the National Museum 

 all lack original labels; Nos. 8547-8549 are labelled Hesper- 

 omys californicus, Santa Cruz, Dr. J. G. Cooper, 1861; Nos. 

 8550-8552 come from the same locality, but are dated 1866. 



Specimens prepared in accordance with Cooper's custom; 

 part of skull inside each skin; fore-feet folded back on breast, 

 hind feet either irregularly aligned posteriorly or arranged 

 anteriorly beneath body ; tails never skinned out. Some of the 

 skins have very little stuffing within them; one, No. 8552, is 

 represented by a head only. 



The condition and coloration of the pelage, the size and 

 especially the thickness of the tail, were principally relied on in 

 the identification of these specimens. The cranium of No. 8552 

 has been removed, and its characters confirm the identification 

 previously made. 



\ Peromyscus eremicus fraterculus (Miller) 



*'H\^esperomys'\ Sonoriensis" (part). Cooper, Zoology, in 

 Cronise, The Natural Wealth of California, 1868, p. 444. 



Specimen examined. — One : No. 145276, U. S. Nat. Mus. ; 

 obverse of label "268d Hesperomys sonoriensis $ San Diego 



