. Mammals of the Mexican boundary of the United States : a descriptive catalogue of the species of mammals occurring in that region; with a general summary of the natural history, and a list of trees . Mammals; Mammals; Trees; Trees; Natural history; Natural history. 400 BULLETIN 56, UNITED STATES NATIONAL MUSEUM. PEROMYSCUS SONORIENSIS CLEMENTIS (Mearns). SAN CLEHENTE HOUSE. Peromyscus texanus dementis Meabns, Proc. U. S. Nat. Mus., XVIII, 1896, pp. 446, 447 (p. 4 of advance sheet issued March 25, 1896; original description).—Millek and Rehn, Proc. Bost. Soc. Nat. Hist., XXX, No. 1, Dec. 27,
. Mammals of the Mexican boundary of the United States : a descriptive catalogue of the species of mammals occurring in that region; with a general summary of the natural history, and a list of trees . Mammals; Mammals; Trees; Trees; Natural history; Natural history. 400 BULLETIN 56, UNITED STATES NATIONAL MUSEUM. PEROMYSCUS SONORIENSIS CLEMENTIS (Mearns). SAN CLEHENTE HOUSE. Peromyscus texanus dementis Meabns, Proc. U. S. Nat. Mus., XVIII, 1896, pp. 446, 447 (p. 4 of advance sheet issued March 25, 1896; original description).—Millek and Rehn, Proc. Bost. Soc. Nat. Hist., XXX, No. 1, Dec. 27, 1901, p. 84 (Syst. Results Study N. Am. Mam. to close of 1900). [PeromystMS texensis] dementis, Elliot, Field Col. Mus., Zool. Ser., II, 1901, p. 130 (Synop. Mam. N. Am.); IV, 1904, p. 187 (Mam. Mid. Am.). Type-locality.—San Clemente Island, off southern California. (Type, skin and skull, Cat. No. 61117, U. S. National Museum.) Geographical range.—Islands of the Santa Barbara group, southern California, and the Coronados Islands, off Lower California. This insular mouse was described as a subspecies of the mainland form for the reason that examples from the nearer islands seemed to be somewhat intermediate in character,between the typical form on San Clemente Island and that of the coast. The species occurs on each of the Coronados Islands and on several islands of the Santa Barbara group. Description.—This mouse is considerably larger and much blacker than P s. medius of the neighboring mainland, and has a more pronounced reddish tinge. The upper surface is drab anteriorly, strongly tinged with burnt umber posteriorly; top of head drab-gray; ears black, with faint hoary edging; feet and under surface white; tail sharply bicolored, blackish above. The above description is based on a series of specimens Pig 78-peeomy- t^-ken by the author in August, 1894. Mr. A. W. sous soNOKiEN- Authony, the well-known naturalist of San Diego, col- skull"^^"™^" lected a
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