4 BULLETIN *79, UNITED STATES NATIONAL MUSEUM. 



t*Didelphis richmondi Allen. 



1901. DidelpJiis richmondi Allen, Bull. Amer. Mus. Nat. Hist., 



vol. 14, p. 175. June 15, 1901. 

 Type Locality. — Greytown, Nicaragua. 



|*Didelphis yucatanensis yucatanensis Allen. 



1901. DidelpMs yucatanensis Allen, Bull. Amer. Mus. Nat. 



Hist., vol. 14, p. 178. June 15, 1901. ^ 

 Type Locality. — Chichenitza, Yucatan. 



t*Didelphis yucatanensis cozumelae Merriam. 



1901. DidelpMs yucatanensis cozumelse, Meeriam, Proc. Biol. Soc. 



Washington, vol. 14, p. 101. July 19, 1901. 

 Type Locality.— Cozumel Island, Yucatan. 



Genus MARMOSA Gray. 



1821. Marmosa Gray, London Med. Repos., vol. 15, p. 308. 

 April 1, 1821. Type, DidelpMs murina Linn^us. 



For use of this name in place of Micoureus Lesson (Nouv. Tabl. Regne 

 Animal, p. 186, 1842) see Thomas, Ann. and Mag. Nat. Hist., eer. 6, vol. 16, 

 p. 58, July, 1895. 



*Mamiosa canescens (Allen). 



1893. DidelpMs (Micoureus) canescens Allen, Bull. Amer. Mus. 



Nat. Hist., vol. 5, p. 235. September 22, 1893. 

 1897. Marmosa canescens Allen, Bull. Amer. Mus. Nat. Hist., 



vol. 9, p. 58. March 15, 1897. 

 Type Locality. — Santo Domingo de Guzman, Isthmus of 



Tehauntepec, Mexico. 



*Marmosa chapmani Allen (see page 399). 



*Marmosa cinerea (Temminck). 



1827. DidelpMs cinerea Temminck, Monogr. Mamm., vol. 1, 



p. 46. 

 1885. DidelpTiys cinerea True, Proc. U. S. Nat. Mus., vol. 7 



(1884), p. 587. 1885. 

 1897. Marmosa cinerea Allen, Bull. Amer. Mus. Nat. Hist., vol. 



9, p. 43. March 11, 1897. 

 Type Locality. — Brazil. (Ranges north to Costa Rica.) 



Marmosa fulviventer Bangs. 



1901. Marmosa fulviventer Bangs, Amer. Nat., vol. 35, p. 632. 



August, 1901. 

 Type Locality, — San Miguel Island, Panama. 



' DidelpMs nelsoni Allen, p. 160, a nomen nudum, may have been intended to apply to this species. 



