PEROMYSCUS, 125 



Peromyscus auritus Meriiaiii. Biolotrical Surve}' collection. 



Proc. Biol. Soc. Wash., XII, pp. 119-120, April 30, 1898. 



0S438. Skin and skull. Old female. Monntain.s 15 miles west of 

 Oaxaca, Oaxaca, Mexico. September 17, ISJ'-t. Collected bj'^ 

 E. W. Nelson and E. A. Goldman. Original number 6795. 

 Wc'll-inade skin in good condition; skull perfect. 



Hesperomys austerus Baii-d. 



Proc. Acad. 2sat. Bci. Phila., VII, p. 336, this paper was reported favorably 

 for publication April 24, 1855. 

 = Peromyscus austerus (Baird). See Bangs, Amer. Nat, XXXI, p. 75, January, 

 1897. 



W/- Skin (lost) and skull. Young- adult. Steilacoom, Washington. 

 Probably Januar}'^ 20, 1854. Collected bj^^ Dr. George Suckley. 

 Catalogued January 4, 1855. 



Skin said to have been mounted; can not be found. Skull much broken; most 

 of mandible present, and most of rostrum, both the upper tooth rows, and a 

 small portion of the cranium. Parts of the skull have a charred appearance. 



No type designated. Baird (^lammals of North America, p. 467, 1857) lists 8 

 specimens as positively auxterw^: No. 229 from Spokane Plain, and nos. 36.'), 

 364, 365, 371, 916, 1964 and 2576 from Steilacoom, Washington. Since Steila- 

 coom is the first locality mentioned in the original description, and since seven- 

 eighths of the specimens came from there, Steilacoom should be chosen as the 

 type-locality. (See Allen, Bull. Amer. Mus. Nat. Hist., V, 1893, p. 192.) Miller 

 and Rehn (Proc. Boston Soc. Nat. Hist., XXX, p. 69, December 27, 1901) erro- 

 neously give Spokane Plain as the type-locality. Of the specimens coming 

 from Steilacoom only the first four were catalogued at the time the original 

 description appeared. The other three were catalogued later in the same year 

 or in the next year. E\adently they were not in Baird's hands when the origi- 

 nal description was prepared and they can not be considered as part of the 

 original material. The first four may properly be considered as the original 

 material. Of these no. 364, as measured by Baird in 1857, agrees very closely 

 (hind foot identical) with the measurements given in the original description and 

 may be chosen as the type. All of these four specimens are represented in the 

 collection by imperfect skulls only. The skins are said to have been mounted. 

 They could not be found in 1893. (See Allen, loc. cit.) 



No. 1964 bears one of Dr. Coues's labels marked "Type of //. austerus Baird= 

 leucojms,^' in what is evidently Dr. Coues's handwriting. In Table 16 on i>age 74, 

 Monographs of North American Rodentia, 1877, Dr. Coues gives no. 1964 as 

 "typical of 'austerus.' " As this specimen was collected after the original 

 description appeared, it obviously can not be considered the type. 



Peromyscus yucatanicus badius Osgood. Biological Survey coll. 

 Proc. Biol. Soc. Wash., XVII, pp. 70-71, March 21, 1904. 



108016. Skin and skull. Adult female. Apazote, Campeche, Mexico. 

 Deceml)er 28, lOriO. Collected by E. W. Nelson and E. A. Gold- 

 man. Original numl)er 14877. 



W^ell-made skin in good condition; skull perfect. 



