374 BULLETIN 56, UKITED STATES NATIONAL MUSEUM. 



Measurements of 23 specimens of Onychomys mrlanophrys. 



Locality. 



Fort Verde, Central Arizona. 

 ....do 



San Pedro River. Mexican Boundary 



Line. 

 do 



.do. 

 .do. 

 .do. 



.do. 

 .do. 

 .do. 

 .do. 

 .do. 

 .do. 

 .do. 



San Bernardino Valley at Monument 



No. 77. 

 San Pedro River, Mexican Boundary 



Line. 



do 



do 



La Noria, Santa Cruz River, Monu- 

 ment No. 111. 



....do 



do 



do 



Lochiel P. O., Pima County, Arizona. 



1884. 

 Dec. 7 



18S6. 

 Apr. 15 



1892. 

 Oct. 22 



....do.. 

 Oct. 24 

 Oct. 26 

 Oct. 17 

 Oct. 15 

 Oct. 25 



....do.. 

 Oct. 23 

 Oct. 17 

 Oct. 26 

 Oct. 22 



Aug. 29 



Oct. 16 



Oct. 25 

 ....do.. 

 Nov. 10 



Nov. 25 

 Nov. 27 

 Nov. 28 

 Dee. 5 



mm. 

 51 



23.0 

 22.0 

 54 [ 22.5 

 52#>2.0 

 22.0 



mm. 

 22.0 



23.5 



20.5 

 21.0 

 22.0 

 22.0 

 22.0 

 21.0 



22.5 



21.0 



21.0 

 22.0 

 20.0 



21.0 

 20.0 

 20.5 

 20.0 



mm. 

 16.0 



15.0 



15. 

 14.0 

 16.5 

 "14.5 

 13.3 

 15.0 

 13.5 

 14.0 

 13.0 

 15.0 



15.0 



15.0 



13.0 

 15.0 

 15.0 



16.0 

 14.5 

 13.5 

 14.0 



ONYCHOMYS TORRIDUS (Coues). 

 ARIZONA GRASSHOPPER HOTXSE. 



Hesperomys (Onychomys) torridus Coues, Proc. Acad. Nat. Sci. Phila., 1874, p. 183 

 (original description); Monogr. N. Am. Rodentia, 1877, pp. 109-111. 



[Onychomys] torridus, Elliot, Field Col. Miis., Zool. Ser., II, 1901, p. 122 (Synop. 

 Mam. N. Am.). 



Onychomys torridus, Miller and Rehx, Proc. Bost. Soc. Nat. Hist., XXX, No. 1, 

 Dec. 27, 1901, p. 67 (Syst. Results Study N. Am. Mam. to close of 1900).— 

 Elliot, Field Col. Mus., Zool. Ser., IV, 1904, pp. 165-167, fig. 32 (skull) 

 fig. XXXVI (animal) (Mam. Mid. Am.). 



Type-locality. — Old Camp Grant, Graham County, Arizona, 

 skin, Cat. No. 9886, U. S. National Museum.) 



(Type, 



