248 Palmer — Generic and Family Names of Rodents. 



Chinchilla Bennett, 1829 Miis laniger. 



Colpostemma Ameghino, 1891.. . . Colpostemma sinuata. 

 t Epiblema Ameghino, 1886 Epihlema horridula. (See Neoepiblema.) 



Eriomys Lichtenstein, 1829. . .. Eriomys chinchilla. 



Euphilus Ameghino, 1889 Euphilas ambrosettianus, E. kurlzii. 



Gyriabrus Ameghino, 1891 Gyriabrus glutinatus. 



Lagidium Meyen, 1833 ....... Lagidium peruanum. 



Lagostomus Brookes, 1829 ... Lagostomiis trichodactylus. 

 t Lagotis Bennett, 1833 Lagotis cuvieri. 



Megamys D'Orb. & Laarillard, 1842 . Megamys patagonensis. 



Neoepiblema Ameghino, 1889. . . . New name for Epiblema Ameghino. 



Perimys Ameghino, 1887 Perimys erutus, P. onustus. 



Pliolagostomus Amegliino, 1887. . Pliolagostomus notatus. 



Potamarchus Burmeister, 1885.. . Potamarchus m,urinus. 



Prolagostomus Aniec^hino, \SS7 . . Prolagostomus pusillus, P. divisus, P. 



profluens, P. imperialism. 



Scotaeumys Ameghino, 1887 Scotaeamys imminutus. 



Sphseram.ys Ameghino, 1887 Sphieramys irruptus. 



Sphiggomys Ameghino, 1887. . . . Sphiggomys zonatus. 



Sphodromys Ameghino, 1887. . . . Sphodromys scalaris. 



Strophostephanos Ameghino, 1891. Strophostephanos iheringii. 



Tetrastylus Ameghino, 1886 Megamys? laevigatus. 



Vizcacia^ Schinz, 1824 (?) Vizcacia pamparum. 



DASYPROCTIDiE. 



Agoutidae Gray, London Medical Kepository, XV, p. 304, April 1, 1821. 

 I Chloromina Gervais, in D'Orbigny's Diet. Univ. d'Hist. Nat., XI, 



p. 204, 1849. 

 J Coelogenina Gervais, in D'Orbigny's Diet. Univ. d'Hist. Nat., XI^ 



p. 204, 1849. 

 X Coelogenyidae Burmeister, Syst. Uebers. Thiere Brasil., I, p. 227, 1854. 

 Dasyporcina Gray, Thomson's Ann. Philos., XXVI, p. 341, Nov., 1825. 

 Dasyproctina Gray, List Spec. Mamm. Brit. Mus., pp. xxv, 124, 1843. 

 Dasyproctidae Bonaparte, Conspectus Syst. Mastozoologise, 1850. 



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



Agouti Lacepede, 1801 Agouti paca (= Mus paca Linna3us). 



Cloromis F. Cuvier, 1812 Includes the agoutis. 



Coelogenus ^ F. Cuvier, 1807. . . Coelogenus subniger, C. fulvus. 



Cutia Liais, 1872 New name for Dasyprocta Ilhger. 



Dasyprocta lUiger, 1811 Cavia aguti, C. acuschy. 



Genyscoelus Liais, 1872 Emended form for Coelogenus. 



Osteopera Harlan, 1825.. . . ... Osteopera platycephala. 



Paca Fischer, 1814 Paca maculata (= Cavia paca). 



Platypyga Illiger, 1811 (?) 



^ Viscacia Rafinesque, 1815 (nomen nudum), Rengger, 1830. 

 ■^ Coelogenus (Griffith, 1827); Caelogenys (Agassiz, 1846) ; Coelogenys 

 (Illiger, 1811) ; Genyscoelus (Liais, 1872). 



