NEOTOMA. '_>83 



Genl. Char. Size medium; tail long. Skull: frontals expanded 

 posteriorly, forming supraorbital shelves; bullae small; teeth slender, 

 with anterior lobe of first upper molar having a deep notch on inner 

 side, as in N. mexicana. 



Color. Upper parts and sides of face buffy ochraceous, lined 

 with black; head grayish; under parts white, the plumbeous under 

 fur showing; axillae salmon; tail dusky above, white below; hands 

 and feet from wrists and ankles white. 



Measurements. Total length, 350; tail vertebras, 164; hind foot, 

 34. Skull: basal length, 37; zygomatic width, 21.5; palatal length, 

 21.5; length of upper molar series, alveolar border, 8.5. 



286. sinaloae (Neotoma) , Allen , Bull. Amer. Mus. Nat. Hist., 1898^.149. 

 SINALOA WOOD RAT. 



Type locality. Tatameles, State of Sinaloa, Mexico. 



Geogr. Distr. State of Sinaloa, Mexico. 



Genl. Char. Similar to N. mexicana; tail longer; bullae small. 



Color. Upper parts dark fulvous brown mixed with black; under 

 parts, hands and feet white; tail above blackish brown, beneath 

 lighter. 



Measurements. Total length, 315-332; tail vertebrae, 155-160; 

 hind foot, 31-32. Skull: total length, 41.5; basal length, 37; zygo- 

 matic width, 21.5; mastoid width, 15.2; interorbital constriction, 

 4.8; length of nasals, 15.4; palatal length, 17; length of upper tooth 

 row, 7. 



287. arenacea (Neotoma), Allen, Bull. Amer. Mus. Nat. Hist., 1898, 



p. 150. 

 LOWER CALIFORNIA WOOD RAT. 



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



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



Genl. Char. Similar to N. f. macrotis, but smaller and paler; 

 intermaxillae extending beyond nasals; supraorbital bead on frontals. 



Color. Upper parts grayish brown mixed with black, tinged with 

 fulvous; outside of forearm and leg blackish; under parts, hands, and 

 feet white; hairs on median band white to roots; rest plumbeous at 

 base; tail above blackish brown, beneath grayish white. 



Measurements. Total length, 349; tail vertebras, 164-167; hind 

 foot, 35-36. Skull: total length, 46.2; basal length, 41; zygomatic 

 width, 23.5; mastoid width, 17.2; interorbital constriction, 5.3; length 

 of nasals, 18.2; palatal length, 15; length of upper molar series, 7. 



288. anthonyi (Neotoma), Allen, Bull. Amer. Mus. Nat. Hist., 1898, 



p. 151. 



