RHTTHRODONTOMYS. SCOTINOMYS. 67 



Type locality. Juquila Oaxaca, Mexico. Altitude, 5,000 feet. 



Geogr. Distr. Mountains in States of Oaxaca and Guerrero, 

 Mexico. 



Genl. Char. Similar to R. rufescens but not so blackish. 



Color. Upperparts rich ochraceous-buff, suffused on back with 

 blackish brown; underparts pale pinkish cinnamon; tail above fus- 

 cous, beneath whitish; hands and feet whitish, buff tinged; ears fus- 

 cous. Type in United States National Museum. 

 Rhithrodontomys alleni Howell. 



Reithrodontomys (!) alleni Howell, N. Am. Fauna, No. 36, 1914, 



P- 59- 



Type locality. Ozolotepec, Oaxaca, Mexico. Altitude 10,000 feet. 



Genl. Char. Similar to R. colimce, but back darker, whiter beneath, 

 and tail longer. Molars without accessory enamel loops. 



Color. Upperparts light pinkish cinnamon mixed with black, 

 darkest on dorsal line; underparts white; tail above fuscous, beneath 

 paler; hands buffy white, feet grayish white tinged with hair-brown; 

 ears pale fuscous. Type in United States National Museum. 



Measurements. Total length, 182; tail, 100; hind foot, 19. 



Genus Scotinomys. 



Scotinomys Thomas, Ann. and Mag. Nat. Hist., XI, 8th ser., 1913, 



p. 408. Type Hesperomys teguina Alston. 



This genus was instituted by Thomas to replace Acodon (71) for 

 the Central American species formerly referred to that genus. 



Scotinomys teguina (Alston). 



Hesperomys teguina Alston, Proc. Zool. Soc. Lond., 1876, p. 755; 

 Elliot, Mamm. Middle Amer. and W. Indies, F. C. M. Pub. 

 IV, Pt. I, 1904, p. 273, figs. 44, xlii, Zool. Ser.; Id. Check- 

 List Mamm. N. Amer. Cont. and W. Indies, F. C. M., Pub. VI, 

 1905, p. 204, Zool. Ser. 

 Type locality. Coban, Guatemala. 



Scotinomys teguina apricus (Bangs). 



Akodon (!) teguina apricus Bangs, Bull. Mus. Comp. Zool., XXXIX, 

 1902, p. 40; Elliot, Mamm. Middle Amer. and W. Indies, F. C. 

 M. Pub., IV, Pt. I, 1904, p. 274, Zool. Ser. Id. Check-List 

 Mamm. N. Amer. Cont. and W. Indies, F. C. M. Pub. VI, 1905, 

 p. 204, Zool. Ser. 



Type locality. Boquete, Chiriqui, Panama. 



