Generic and Family Names of Rodents. 265 



Phyllomys Lund, 1839 Phyllomys brasiliensis (?) 



PitJianotomys Kme^mo, 1887... Pithanotomys columnaris. 



Plagiodontiai F. Cuvier, 1836. Plagiodontia aedium. 



* Plaiaeomys Ameghino, 1881 Plataeomys scindens. 



* Platythrix Pictet, 1842 (?) 



* Poecilomys Pictet, 1842 (?) 



Poephagomys F. Cuvier, 1834. . Poephagomys ater. 



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

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



copus poeppigii). 

 Pseudoneoreomys Ameghino, 1891 Pseudoneoreomys pachyrhynchus, P. lep- 



torhynchus, P. mesorhynchus. 



? Ruscinomys Deperet, 1890 Ruscinomys europxus. 



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



Sderomys Ameghino, 1887 Scleromys angustus. 



Spalacopus Wagler, 1832 , . . Spalacopus poeppigii. 



Spaniomys Ameghino, 1887 Spaniomys riparius, S. modestus. 



Stichomys Ameghino, 1887 Stichomys reguiaris, S. constans. 



Thrichomys Trouessart, 1881.. Thrichomys antncola, 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. 



PEDETIDiE. 



X 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 Mus cafer. 



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



Pedetes Illiger, 1811 Dipus cafer. 



PSEUDOSCIURID-ai. 



Pseudosdaridse Zittel, Handb. der Palseont., IV, 2" Lief., p. 523, 1893. 



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



Adelomys Gervais, 1853 Theridomys vaillanti. (See Theridomyidx.) 



? Decticadapis Lemoiue, 1883 Decticadapis sciuroides. 



Pseiidosciurus Hensel, 1856 Pseudosciurus suevicas. 



Sciiirodon Schlosser, 1884 Sciurodon cadurcense. 



Sciuroides Forsyth Major, 1873 . . Sciurus rtUimeyeri, Sciuroides fraasi, S. 



sideroUthicus, S. minimus. 



^ Emended to Plagiodon (Alston, 1876). 



