214 NEOTOMA. 



SINALOA WOOD RAT. 



Type locality. Tatameles, State of Sinaloa, Mexico. 

 I'i.str. State of Sinaloa. Range unknown. 



496. Neotoma arenacea Allen. 



Neotoma arcnaa-a Allen, Bull. Am. Mus. Nat. Hist. N. Y., 1898, 

 p. 150. Elliot, Mamm. Middle Amer. & W. Indies, F. C. M. 

 Pub., iv, Ft. i, 1904, p. 283. Zool. Ser. 

 LOWER CALIFORNIA WOOD RAT. 



Type locality. San Jose del Cabo, Lower California, Mexico. 



Geogr. Distr. Cape Region, Lower California, Mexico. 



497. Neotoma nudicauda Goldman. 



Neotoma nndicanda Goldm., Proc. Biol. Soc. Wash., xvm, 1905, 



p. 28. 

 NAKED-TAILED WOOD RAT. 



Type locality. Carmen Island, Lower California, Mexico. 



Geul. Char. Similar to N. arenacea but paler, with comparative 

 differences in cranial characters. 



Color. Above pale grayish buff, slightly darker on back, and the 

 sides tinged with brownish; under parts white, base of hairs plum- 

 beous on belly; feet white, tail bicolor, brownish on upper third, 

 whitish on lower two-thirds; ears grayish brown. 



Measurements. Total length, 330; tail vertebrae, 91 ; hind foot, 39. 



498. Neotoma anthonyi Allen. 



Neotoma anthonyi Allen, Bull. Am. Mus. Nat. Hist. N. Y., 1898, 

 p. 151. Elliot, Mamm. Middle Amer. & W. Indies, F. C. M. 

 Pub., iv, Pt. i, 1904, p. 283. Zool. Ser. 

 TODOS SANTOS WOOD RAT. 



Type locality. Todos Santos Island, Lower California, Mexico. 



Geogr. Distr. Known only from the type locality. 



499. Neotoma martinensis Goldman. 



Neotoma martinensis Goldm., Proc. Biol. Soc. Wash., xvm, 1905, 



p. 28. 

 SAN MARTIN ISLAND WOOD RAT. 



Tvpe locality. San Martin Island. Lower California, Mexico. 



Genl. Char. Size medium; color resembling that of .V. anthonyi; 

 Skull : temporal ridges faint, widely separated ; nasal long, narrowing 

 abruptly posteriorly, extending beyond lachrymals; frontal region 

 constri<-tc<l anteriorly, without well-developed ridges; bullae small; 

 meatus large, widely open. 



Color. Above grayish brown, mixed with dusky on dorsal region; 

 sides suffused with pale buff; under parts creamy white, base of fur 



