Generic and Family Names of Rodents. 265 



Phyllomys Lund, 1839 Phyllomys brasiliensis (?) 



Pithanotomys Ameghino, 1887. . . Fithanotomys columnaris. 



Plagiodontia 1 F. Cuvier, 18.36. Plagiodontia aedium. 



* I'liitiicoinijs Ameghino, 1881 I'latacomys scindens. 



* Platythrix Pictet, 1812 (?) 



* PcEcilomys Pictet, 1842 (?) 



Poephagomys F. Cuvier, 1834. . Pa'pbagomys ater. 



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

 Psammoryctes Pee ppig, 1835. . Psammoryctes noctivagus (= Spala- 



copus poeppigii). 

 Psendoneoreomys Ameghino, 1891 Pseudoneoreomys pachyi'hynchus, P. lep- 



torhynchus, P. mesorhynchus. 



? Ruscinomys Dep^ret, 1890 Ruscinomys europseus. 



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



ScUroitiys Amegliino, 1887 Scleromys angustus. 



Spalacopus Wagler, 1832 . . . Spalacopus poeppigii. 



Spaniomys Ameghino, 1887 Spaniomys riparius, S. modestus. 



Stidtomys Ameghino, 1887 Stichomys rcgularis, S. constnns. 



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



brevicauda. 

 Thrinacodus Glinther, 1879. . . Thrinacodus albicauda. 

 Thryonomys Fitzinger, 1867... Aulacodus semipalmatus. 

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



1827. (See Thryonomys.) 

 Tnbodon Ameghino, 1887 Tribodon clemens. 



PEDETIDiE. 



X Halamydee 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, aiitlioiity, aurt date. Type or included specie.'*. 



Helamys F. Cuvier, 1817 Mus cafer. 



Lagotis P)lainville, 1817 'La grande gerboise du Cap.' 



Pedetes llliger, 1811 Dipus cafer. 



PSEUDOSCIURIDiE. 



Pseudosciuridx Zittel, Handb. der Palseont., IV, 2'^ Lief., p. 523, 1893. 

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



Adelomys Gervais, 1853 Theridomys vaillanti. (See Theridomyids;.) 



? Decticadupis Lemoine, 1883 Decticadapis sciuroides. 



Pseadosciurus Hensel, 1856 Pseudoaciurus suevicus. 



Sciurodon Schlosser, 1884 Sciurodon cadurcense. 



Sciuroides Forsyth Major, 1873. . Sciuras rutimeyeri, Sciuroides fraasi, S. 



siderolitJiicus, S. ininimus. 



1 Emended to Plagiodon (Alston, 1876). 



