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INDEX GENERUM MAMMALIUM. 
Name, authority, and date. Type or included species, and localities. 
Cournomys (‘Croizer’ ) Zrrrer, 1893. Synonym of Issiodoromys Croizet, 1845. 
Cuvierimys BRAVARD, 1848-52._._--- Cuvierimys laurillardi, Pay de Dome, France. 
Dipoides VAGER; 1830eees255 5-55 ees = Dipoides sp., Hohenzollern, Germany. 
Gergoviomys (Crozer MS.) Brnarw-  Gergoviomys sp., Auvergne, France. 
VILLE, 1840. 
Tsoptychus'Pommn, 1854---..-—...... Tsoptychus jourdani, I. vassoni, Theridomys aqua- 
lilis, Isoptychus cuviert, I. auberyi, I. antiquus, 
France. 
Issiodoromys Crozet, 1845 ......... Issidioromys pseudanema Gervais, 1848-52, Puy 
de Dóme, France. 
{| Neomys BRAVARD, 1848-52 ........ Neomys lembronicus (= Theridomys lembronicus), 
St. Germain de Lembron, Puy de Dóme, 
France. 
Nesokerodon@ SCHLOSSER, 1884 ...... Issiodoromys minor, Mouillac, France. 
Omegodus PoMEL, 1854. ............ Omegodus echimyoides, Puy de Dome, France. 
+ Paleomys LarzER & Partev, 1839... Palacomys arvernensis, France. (See Archxomys. ) 
Palanema Pome, 1854 ............ Palanema antiquus, Issoire, France. 
Perieromys (‘Crozer’) BraiNviLLE, Perieromys sp., Mt. Pérrier, France. 
1840. 
Protechimys? ScurossER, 1884 ...... Protechimys gracilis, P. major, Mouillac, France. 
Theridomys JOURDAN, 1837 ......... Theridomys sp., southern France. 
T Teentodus PoMEL, 1854 ............ Echimys curvistriatus, Auvergne, France. 
Trechomys LAnTET, 1869............ Trechomys bonduellii, Paris basin, France. 
ZAPODIDZE. 
Zapodide Coues, 1875. 
GENERA AND SUBGENERA. 
Name, authority, and date. Type or included species, and localities. 
Eozapus PREBLE, 1899) 5. aes Zapus setchuanus, Szechuen, China. 
T Meriones Cuvier, 1823............ Dipus americanus, Philadelphia, Pennsylvania. 
Napeozapus PREBLE, 1899 .......... Zapus insignis, Restigouche River, New Bruns- 
wick. 
Zapuss© OURS SA see d ERE Dipus hudsonius, Hudson Bay, Canada. 
INCERTZE SEDIS. 
Archilagus H@cKEL, 1895 -..-.-.--- Hypothetical: ‘Atavus omnium Rodentium.’ 
Architrogon HmcKEL, 1895 ......... Hypothetical ancestor of the Rodentia. 
Asteromys AMEGHINO, 1897 ......... Asteromys punctus, A. prospicuus, Patagonia. 
Budomys (‘Crozer’) BRAvARD, 1843. Budomys sp., Puy de Dome, France. 
Cephalomys © AMEGHINO, 1897....... Cephalomys arcidens, C. plexus, Patagonia. 
Haplostropha AMEGHINO, 1891 ...... Haplostropha scalabriniana, Paraná, Argentina. 
Flystriocomys GIEBEL, 1860 _...----- Hystriocomys thuringiacus, Thüringen, Germany. 
Odontomisops AMEGHINO, 1902 ..... Odontomysops spiniferus, Patagonia. 
Orchiomys¢ AMEGHINO, 1897........ Orchiomys prostans, Patagonia. 
Palaiotrogos JAGER, 1839 .--......-- Palaiotrogos steinheimensis, Steinheim, Wurttem- 
berg. 
Protechynus FruHou, 1891_.....----- Nomen nudum, Lot-et-Garonne, France. 

* Emended to Nesocerodon LvpEKKER, 1885. 
^ Emended to Protechinomys LyDEKKER, 1885. 
€ Cephalomyide AMEGHINO, 1897. 
4 Odontomysopid: AMEGHINO, 1902. 
