PART III: GLIRES, HETEROMYIDH—ISCHYROMYIDEH. 849 
Name, authority, and date. Type or included species, and localities. 
Dipodops Merriam, 1890 ........... Dipodomys agilis, Los Angeles, California. (See 
Perodipus. ) 
? Entoptychus Corn, 1878 ........... Entoptychus | cavifrons (type), .E. planifrons, 
KE. erassiramis, Oregon. 
Heteromys Drsmarest, 1817 ........ Mus anomalus, Trinidad, West Indies. 
Liomys Merriam, 1902............ - Heteromys alleni, San Luis Potosi, Mexico. 
Macrocolus WAGNER, 1844.......... Macrocolus halticus, Mexico. 
Mamdipodomysus Herrera, 1899.... Modification of Dipodomys Gray, 1841. 
Microdipodops MERRIAM, 1891....... Microdipodops megacephalus, Halleck, Ney. 
Otognosis Cours, 1875.............. Otognosis longimembris, Fort Tejon, Cal. 
Perodipus FrrziNGER, 1867.......... Dipodomys agilis, Los Angeles, Cal. 
Perognathus MAXIMILIAN, 1839 ..... Perognathus fasciatus, Fort Buford, N. Dak. 
IRIPULOLLCUS COPE. ISSN E Pleurolicus sulcifrons, Oregon. 
Protoptychus Scorr, 1895 ........... Protoptychus hatcheri, Utah. 
Saccomys F. Cuvirr, 1823.......... Saccomys anthophilus, North America. 
Xylomys Merriam, 1902 ........... Heteromys (Xylomys) nelsoni, Pinabete, Mexico. 
HYSTRICIDZE. 
FAMILIES AND SUBFAMILIES. 
Hystricini G. FrscHgn, 1817. Histride * Gray, 1821. 
GENERA AND SUBGENERA. 
Name, authority, and date. Type or included species, and localities. 
Acantherium Gray, 1847 ........... Acanthionjavanicum, Java; A. flemingii(hybrid). 
Acanthion CuviER, 1822 ............ Acanthion javanicum, Java. 
Acanthochoerus GRAY, 1866......... Acanthochoerus bartlettii (hybrid); A. grotei, 
India. (See Acantherium). 
Anchitheriomys RoagR, 1898 ........ Hystrix wiedemanni, Swabia, Germany. 
Atherurus F. CuviER, 1829 ......... Hystrix fasciculata, Malacca. 
Hystricotherium Croizet, 1853 ...... Hystrix refossa, Mount Perrier, France. 
Mystrix Winnmus, UioSis.-2-22-< =. - Hystrix cristata (type), Asia and Africa; H. 
prehensilis, South America; H. dorsata, east- 
ern Canada; H. macroura, H. brachyura, Asia. 
Lamprodon WAGNER, 1848 ......... Lamprodon primigenius, Pikermi, Greece. 
(Edocephalus Gray, 1866 ........... Acanthion cuvieri, North Africa. 
Orenomys AYMARD, 1855 ........... Oreomys claveris (nomen nudum), Auvergne, 
France. 
Triehys GUNTHER, 1876------------- Trichys lipura, Borneo. 
ISCHYROMYIDZE. 
FAMILIES AND SUBFAMILIES. 
Ischyromyidxe ArsrON, 1876. i Protomyidx Corr, 1874. 
Paramyida H xckEr, 1895. 
GENERA AND SUBGENERA. 
Name, authority, and date. Type or included species, and localities, 
?Apatemys Mansng, 1872 ............ Apatemys bellus (type), A. bellulus, Henry Fork, 
j Wyoming. 
Colonomys Mazsg, 1872 ............ Colonomys celer, Henry Fork, Wyoming. 
Colotamis(COPEy lodge Colotaxis cristatus, Colorado. 
Gymnoptychus Corn, 1873........... Gymnoptychus chrysodon (type), G. nasutus, G. 
trilophus, G. minutus, Colorado. 

^ Hystricidze Burner, 1830. 
1591—No. 23-——03——54 
