. Bulletin - United States National Museum. Science. 488 BULLETIN 56, UNITED STATES NATIONAL Description.—Size, small. Length, .300 mm.; tail vertebrae, 125; hind foot, 30; ear from crown, 27. Ears, large. Pelage remarkably long, soft, and silky. Color above ochraceous buff; head smoke gray; under parts, white, sometimes faintly washed with pinkish buff; tail, bicolor, dusky above, white below. Cranio/ and dental characters.—Skull light, with remarkably large tympanic bullae. Remarks.—On the Mexican Line this beautiful species has been found only a (Yuma, on the Colorado River. NEOTOM
. Bulletin - United States National Museum. Science. 488 BULLETIN 56, UNITED STATES NATIONAL Description.—Size, small. Length, .300 mm.; tail vertebrae, 125; hind foot, 30; ear from crown, 27. Ears, large. Pelage remarkably long, soft, and silky. Color above ochraceous buff; head smoke gray; under parts, white, sometimes faintly washed with pinkish buff; tail, bicolor, dusky above, white below. Cranio/ and dental characters.—Skull light, with remarkably large tympanic bullae. Remarks.—On the Mexican Line this beautiful species has been found only a (Yuma, on the Colorado River. NEOTOMA FUSCIPES MA- CROTIS (Thomas). SAN DIEGO "WOOD-RAT. Neotoma macrotis Thomas, Ann. ,6thSer., XII, Sept., 1893, pp. 234, 235 (from San Diego, Cali- fornia ; original description). Neotoma macrotis simplex True, Proc. Nat. Mus., XVII, 1894, p. 354 (advance sheet issued June 27, 1S94). (A pale interior form). Neotoma fusdpes macrotis, Mer- RIAM, Proc. Acad. Xat. Sci. Phila., 1894, p. 242.—Mil- ler and Reiin, Proc. Bost. Soc. Xat. Hist., XXX, No. 1, Dec. 27, 1901, p. 104 (Syst. Results Study X. Am. Mam. to close of 1900). [Neotoma fuseipes] macrotis, Elliot, Field Col. Mus., Zool. Ser., II, 1901, p. 159 (Synop. Mam. X. Am.). Type-locality. — San Diego, California. (Type, skin and skull, in the British Museum.) Geographical range.—Pacific Coast Tract of southern and Lower California; inhabits the Sonoran Zone. Description.—Size, rather large. Length, 370 mm.; tail verte- brae, 170; hind foot, 35; ear from crown, 25; Skull, 47 by 25. Above russet-drab, mixed with blackish; head and limbs mouse-gray; feet (fig. 120h and c) with the usual white color more or less replaced by dusky or blackish down to the toes; under surface, white (except the tail), more or less washed with ochraceous bull' across the abdomen; tail (fig. 120c/) not distinctly bicolor, but black, slightly mixed with gray above and sooty grayish below: ears (fig. \'20<t) large,
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