Generic and Family Names of Rodents. 265 



Phyllomys Lund, 1839. Phyllomys brasiliensis (?) 



Pithanotomys Ameghino, 1887... Pithanotomys columnaris. 



Plagiodontia 1 F. Cuvier, 1836. Plagiodontia aedium. 



* Plataeomys Ameghino, 1881 Plataeomys scindens. 



* Platythrix Pictet, 1842 (?) 



* Pcecilomys Pictet, 1842 (?) 



Pcephagomys F. Cuvier, 1834. . Poephagomys ater. 



Potamys Larranhaga, 1823. Le quyiaof Azara (Myopotamus coypus). 

 Psammoryctes Pceppig, 1835. . Psammoryctes noctivagus (= Spala- 



copus poeppigii). 

 Pseudoneoreomys Ameghino, 1891 Pseudoneoreomys pachyrhynchus, P. lep- 



torhynchus, P. mesorhynchus. 



? Ruscinomys Deperet, 1890 Ruscinomys europeeus. 



f Schizodon Waterhouse, 1842. . Schizodon fuscus. (See Aconaemys.) 



Scleromys Ameghino, 1887 Scleromys angustus. 



Spalacopus Wagler, 1832 ... . . Spalacopus poeppigii. 



Spaniomys Ameghino, 1887 Spaniomys riparius, S. modestus. 



Sticliomys Ameghino, 1887 Stichomys regularis, S. constans. 



Thrichomys Trouessart, 1881.. Thrichomys antricola, T. inermis, T. 



brevicauda. 



Thrinacodus Giinther, 1879. . . Thrinacodus albicauda. 

 Thryonomys Fitzinger, 1867... Aulacodus semipalmatus. 

 Triaulacodus Lydekker, 1896. . New name for Aulacodus Temminck, 



1827. (See Thryonomys.) 

 Tribodon Ameghino, 1887 Tribodon clemens. 



PEDETIDJE. 



J Halamydae GRAY, London Medical Repository, XV, p. 303, April 1, 1821 . 

 Pedestina GRAY, Thomson's Ann. Philos., XXVI, p. 342, Nov., 1825. 

 Pedetidae GILL, Arrangement Fam. Mamm., p. 20, Nov., 1872. 

 Name, authority, and date. Type or included species. 



Helamys F. Cuvier, 1817 Mas cafer. 



Lagotis Blainville, 1817 'La grande gerboise du Cap.' 



Pedetes Illiger, 1811 Dipus cafer. 



PSEUDOSCIURIDJE. 



Pseudosciuridx ZITTEL, Handb. der Palseont.. IV, 2 te Lief., p. 523, 1893. 

 Name, authority, and date. Type or included species. 



Adelomys Gervais, 1853 Thendomys vaiUanti. (See Theridomyidse.) 



? Decticadapis Lemoine, 1883 Decticadapis sciuroides. 



Pseiidosciurus Hensel, 1856 Pseudosciurus suevicus. 



Sciurodon Schlosser, 1884 Sciurodon cadurcense. 



Sciuroides Forsy th Major, 1873 . . Sciurus rutimeyeri, Sciuroides fraasi, S. 



siderolithiciis, S. minimus. 



* Emended to Plagiodon (Alston, 1876), 



