876 INDEX GENERUM MAMMALIUM. 
INCERTZE SEDIS. 
Name, authority, and date. Type or included species, and localities. 
ANecrolestes ^ AMEGHINO, 1891 ....... Necrolestes patagonensis, Patagonia. 
MARSUPIALIA. 
ABDERITIDZE. 
Abderiteside AMEGHINO, 1889. 
GENERA AND SUBGENERA. 
Name, authority, and date. Type or included species, and localities. 
Abderites AMEGHINO, 1887 .......... Abderites meridionales, RioSanta Cruz, Patagonia. 
Parabderites AMEGHINO, 1902 ....... Parabderites bicrispatus, Patagonia. 
ACYONIDZE, AMPHIPROVIVERRIDZE. (See BORHYZENIDAZE.) 
AMPHITHERIIDZE. 
(Including Dryolestid:e. ) 
FAMILIES AND SUBFAMILIES. 

Amblotheridae OsBonN, 1887. Dryolestide M ^nsH, 1879. 
Amphitheriidz OWEN, 1846. Kurtodontid: * OsBORN, 1888. 
I Athrodontidx OsBorn, 1887. Stylacodontidz GYEBEL, 1879. 
Cyrtodontide Wi1NaE, 1893. t Stylodontide Marsu, 1879. 
GENERA AND SUBGENERA. 
Name, authority, and date. Type or included species, and localities. 
Achyrodon OwEn, 1871 -.----------- Achyrodon nanus, A. pusillus, Durdlestone Bay, 
England. 
Amblotherium OwEN, 1871 .......... Amblotherium soricinum, Durdlestone Bay, Eng. 
Amphigonus AGAssiz, April, 1828... Amphigonus sp. (= Amphitherium), Stonesfield, 
England. 
Amphitherium BLAINVILLE, 1838 .... Didelphis prevostii, D. bucklandii, Stonesfield, 
England. 
Amphitylus OsBoRN, 1887........... Didelphis prevostii, Stonesfield, England. (See 
Thylacotherium.) 
Asthenodon Mars, 1887 ...... -..- Asthenodon segnis, Atlantosaurus beds, Wyo. 
T Athrodon Osporn, Nov. 1, 1887.... New name for Stylodon Owen, 1866. (See Kur- 
todon. ) 
Botheratiotherium massima Facetious name for Amphitherium Blainville. 
Curtodon (‘Osporn’) Zrrret, 1892... Emendation of Kurtodon Osborn, 1888. 
Dryolestes MINRESB; 18782 0.5.22 5227 Dryolestes priscus, Atlantosaurus beds, Wyo. 
Heterotherium BuAINVILLE, 1838..... Name suggested (but not adopted) for Amphi- 
therium Blainville, 1838. 
Kurtodon* OsBonN, Nov., 1887 ..... New name for Athrodon Osborn, 1887. 
DLaodon NIA RSHSRESS ae eee Laodon venustus, Wyoming. 
Leptocladus OwEn, 1871 ............ Leptocladus dubius, Durdlestone Bay, England. 
T Odontostylus TROUESSART, 1898..... Stylodon robustus, Durdlestone Bay, England. 
(See Trouessartia and Trouessartella. ) 

^ [uuiGER, Prodromus Syst. Mamm. et Avium, p. 75, 1811. 
¢ According to Woopwarp & SHERBORN, Kurtodon, or Curtodon, is preoccupied by 
Curtodus SAUVAGE, 1867, a genus of Pisces. 
