88 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 



*^Rhipidoinys sumichrasti (Saussure). 



1861. Hesperomys sumichrasti Saussure, Ikevue et magasin 



de zoologie, 2d ser., xii, p. 107. 

 1885. Hesperomys sumiclirasti Tkue, Proc. U. S. nat. mus., 



VII (1884), p. 598. 1885. 

 1897. \B.hlpidoinys'\ sumichrasti Trouessart, Catal. mamm., 



pt. Ill, p. 519. 

 Type locality. — Eastern slope of mountains in State of Vera 



Cruz, Mexico. 



Rhipidomys decolorus True. 



1894. ^Sitoitiys [Hhipidomys) decolorus True, Proc. U. S. 



nat. mus., xvi, p. 689, February 5, 1894. 

 1897. [Hhipidomys'] decolorus Trouessart, Catal. mamm., 



pt. Ill, p. 519. 

 Type locality. — Rio de las Piedras, Honduras. 



Genus TYLOMYS Peters. 



1866. Tyloii/ys Peters, Monatsber. k. preuss. Akad. Wissensch. 

 Berlin, p. 404. Type. — Hesj^eroiirys ( Tylomys) midicaudus 

 Peters. 



*^Tylomys nudicaudus (Peters). 



1866. Hesperoiiiys ( Tylomys^ nudicaudus Peters, Monats- 

 ber. k. preuss. Akad. Wissensch. Berlin, j). 404, ])1. 1, figs. 

 1-4. 



1885. Hesperoniys nudicaudus True, Proc. U. S. nat. mus., 

 VII (1884), p. 598. 1885. 



1897. [Tyloiuys] nudicaudus Trouessart, Catal. mamm., pt. 

 Ill, p. 520. 



Type locality. — Guatemala. 



* Tylomys panamensis (Gray). 



1873. Neoinys paiianiensis (j-RXY, Ann. and mag. nat. hist., 



4th ser., xii, p. 417. 

 1885. Hesperoniys panamensis True, Proc. U. S. nat. mus., 



VII (1884), p. 598. 1885. 



