Generic and Family Names of Rodents. 253 



Microdipodops Merriam, 1891. Microdipodops megacephalus. 



Otognosis Coues, 1875 Otognosis longimembris. 



Perodipus Fitzinger, 1867 Dipodomys agilis. 



Perognathus Maximilian, 1839. Perognathus fasciatus. 



Pleurolicus Cope, 1878 Pleurolicus sulcifrons. 



Saccomys F. Cuvier, 1823 Saccomys anthophilus. 



HYSTRICIDAE. 



Histricidae GRAY, London Med. Repository, XV, p. 304, April 1, 1821. 

 Hystrixideae LESSON, Nouv. Tableau Regne Animal, Mamm., p. 96, 1842. 



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



Acantherium Gray, 1847 Acanthion javanicum, A. flemingii. 



Acanthion Cuvier, 1822 Acanthion javanicum. 



Acanthochoerus Gray, 1866. . . Acanthochoerus bartlettii, A. grotei. 

 Atherurus F. Cuvier, 1829 Hystrix fasciculata. 



* Eucritus G. Fischer, 1817 (?) 



Hystricotherium Croizet, 1853 . . . Hystrix refossa. 



Hystrix Linnaeus, 1758 Hystrix cristata, H. prehensilis, H. 



dorsata, H. macroura, H. brachyura. 



Lamprodon Wagner, 1848 Lamprodonprimigenius. 



CBdocephalus Gray, 1866 Acanthion cuvieri. 



* Oreomys Aymard, 1854 Oreomys claveris. 



Trichys Giinther, 1876 Trichys lipura. 



ISCHYROMYIDJE. 



Ischyromyidse ALSTON, Proc. Zool. Soc. London, 1876, pp. 67, 78. 

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



Colonomys Marsh, 1872 Colonomys celer. 



Colotaxis Cope, 1873 Colotaxis cristatus. 



Ischyromys Leidy, 1856 Ischyromys typus. 



? Mysops Leidy, 1871 , Mysops minimus. 



Paramys Leidy, Nov. 28, 1871 .. Paramys delicatus, P. delicatior, P. deli- 



calissimus. 



Pseudotomus Cope, 1872 Pseudotomus hians. 



Sciuravus Marsh, June 21, 1871. Sciuravds nitidus, S. undans. 

 t Sciuromys Schlosser, 1884 ; ... ... Sciuromys cayluxi. 



Syllophodus Cope, 1881 New name for Mysops Leidy, 1871 



(erroneously said to be preoccupied). 



Taxymys Marsh, 1872 Taxymys lucaris. 



Tillomys Marsh, 1872 Tillomys senex, T. parvus. 



LEPORID.aE!. 



Lagidae SCHULZE, Helios, XIV, p. 82, 1897. 



Leporidae GRAY, London Medical Repository, XV, p. 304, April 1, 1821. 



Lepusidae GERVAIS, Ann. Sci. Nat., 3 me ser., XX, p. 246, 1853. 



58 Biot. Soc. WASH., VOL. XI, 1897 



