250 Palmer Generic and Family Names of Rodents. 



SminthusKeys. & Blasius,1840. Sminthus nordmanni. 



Yerbua Forster, 1778 Yerbua tarsata (=Tarsius spectrum), 



Y. sibirica, Y. capensis (= Pedetes 

 cafer), Mus meridianus, Yerbua 

 kanguru ( Macropus giganteus) ; 

 Mus longipes,M. jaculus, M. sagitta. 



Zapus Coues, 1875 Dipus hudsonius. 



EOCARDIDJE. 



Eocardidse, Ameghino, Re vista Argentina, I, Ent. 3, p. 145, Junio, 1891. 

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



Dicardia Ameghino, 1891 Dicardia maxima, I), modica, D. exca- 



vata. 



Eocardia Ameghino, 1887 Eocardia montana. 



Hedymys Ameghino, 1887 Hedymys integrus. 



Phanomys Ameghino, 1887 Phanomys mixtus. 



Procardia Ameghino, 1891 Eocardia eliptica. 



Schistomys Ameghino, 1887 Schistom.ys erro. 



Tricardia Ameghino, 1891 Eocardia divisa. 



ERETHIZONTIDJE. 



JCercolabina GRAY, List Spec. Mamm. Brit. Mus., pp. xxiv, 123, 1843. 

 J Cercolabinae GILL, Arrangement Fam. Mamra., p. 22, Nov., 1872. 

 J Cercolabidae AMEGHINO, Enum. Sist. Mam. Fos. Patagonia Austral, 



p. 9, Die. 1887. 



Chaetomyinae THOMAS, Proc. Zool. Soc. London, 1896, 1026 (1897). 

 Coendidae TROUESSART, Cat. Mamm. tarn viv. quam foss., fasc. Ill, 



p. 619, Oct., 1897. 



Erethizontina BONAPARTE, Conspectus Syst. Mastozoologise, 1850. 

 Erethizontidae THOMAS, Proc. Zool. Soc. London, 1896, 1025 (Apr., 1897). 

 J Sphingurinae ALSTON, Proc. Zool. Soc. London, 1876, p. 93. 

 JSynetherina GERVAIS, in D'Orbigny's Diet. Univ. d'Hist. Nat., XI, 



p. 204, 1849. 



} Synetherinae TROUESSART, Cat. Mamm. Viv. et Foss., Rongeurs, p. 182, 

 1881. 



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



Acaremys Ameghino, 1887 Acaremys murinus, A. minutus, A. mi- 



nutissimus. 



Cercolabes Brandt, 1835 Ne w name for Coendou Lace pede, 1801. 



Chaetomys Gray, 1843 Hystrix subspinosus. 



Coendou 1 Lacepede, 1801 Hystrix prehensilis. 



Echinoprocta Gray, 1865 Erethizon rufescens. 



Echinothrix Brookes, 1828. .. Hystrix dorsata. 



1 Emended to Coendous (Temminck, 1820) ; Coendus (Illiger, 1815) ; 

 Ccendus (Rannesque, 1815) ; Cuandu (Liais, 1872), 



