178 BULLETIN- 79, UNITED STATES NATIONAL MUSEUM. 



*Zygodontomys chrysomelas (Allen). 



1897. Oryzomys chrysomelas Allen, Bull. Amer. Mus. Nat. Hist., 



vol. 9, p. 37. March 11, 1897. 

 1902. Zygodontomys chrysomelas Bangs, Bull. Mus. Comp. Zool., 



vol. 39, p. 37. April, 1902. 

 Type Locality. — Suerre, Costa Rica. 



*Zygodontomys seorsus Bangs. 



1901. Zygodontomys seorsus Bangs, Amer. Nat., vol. 35, p. 642. 

 August, 1901. 



Type Locality. — San Miguel Island, Panama. 



Genus SIGMODONTOMYS Allen. 



1897. Sigmodontomys Allen, Bull. Amer. Mus. Nat. Hist., vol. 9, 

 p. 38. March 11, 1897. Type, Sigmodontomys aZ/ari Allen. 



Sigmodontomys alfari Allen. 



1897. Sigmodontomys alfari Allen, Bull. Amer. Mus. Nat. Hist., 



vol. 9, p. 39. March 11, 1897. 

 Type Locality. — Jimenez, Costa Rica. Altitude, 700 feet. 



Genus MEGALOMYS Trouessart.* 



1881. Megdlomys Trouessart, Le Naturaliste, vol. 1, p. 357. 

 February 1, 1881. Type, Mus inlorides Pallas. 



1902. Megdlomys Allen, Bull. Amer. Mus. Nat. Hist,, vol. 16, 

 p. 21. February 1, 1902. 



According to Major (Ann. and Mag. Nat. Hist., ser. 7, vol. 7, p. 205, Febru- 

 ary, 1901), this genus is not distinguishable from Oryzomys. 



Megalomys desmarestii (Fischer). 



1829. M[us] desmarestii Fischer, Synopsis Mammalium, p. 316. 

 ■ 1885. Hesperomys inlorides True, Proc. U. S. Nat. Mus., vol. 7 

 (1884), p. 598. 1885. 

 1902. Megalomys desmaresti Allen, Bull. Amer. Mus. Nat. 



Hist., vol. 16, p. 21. February 1, 1902. 

 Type Locality. — Island of Martinique, West Indies. 



According to Major (Ann. and Mag. Nat. Hist., ser. 7, vol. 7, p. 205, Febru- 

 ary, 1901), the proper name for this species is Oryzomys pilaris (Zimmermann.) 



Megalomys luciae (Major). 



1901. Oryzomys lucise Major, Ann. and Mag. Nat. Hist., ser. 7, 



vol. 7, p. 206. February, 1901. 

 Type Locality. — Island of Santa Lucia, West Indies. 



I On account of the existence of the earlier name Megamys (Laurillakd, 1S4S) applied to another genus, 

 Megalomys has heen replaced by Moschomys Trouessart (Ann. and Mag. Nat. Hist., ser. 7, vol. 11, p. 

 3S8, April, 1903, not of Billberg, 182S) and Moschoplwromys Elliot (Field Columb. Mus., pub!. 90, zool. 

 se.-., vol. 3, p. 270, March 8, 1904). This is not in accordance with the provisions of the International Code, 

 (Art. 36, with accompanying recommendation.) 



