PART III: MARSUPIALIA, DROMATHERIID#®—EPANORTHIDE. 881 
DROMATHERIIDZE. 
FAMILIES AND SUBFAMILIES. 
Dromatheriidae Grvr, 1872. i Protodontida I1^EckEL, 1895. 
GENERA AND SUBGENERA. 
Name, authority, and. date. Type or included species, and localities. 
Dromatherium Emmons, 1857... .-..-. Dromatherium silvestre, Chatham, N. C. 
T Microconodon OsBORN, 1886 ....... Microconodon tenuirostris, Chatham, North Caro- 
lina. (See Tytthoconus.) 
Tytthoconus PALMER, 1903 .......... New name for Microconodon Osborn, 1886. 
DRYOLESTIDZ. (See AMPHITHERIIDZE. ) 
EPANORTHIDZE. 
FAMILIES AND SUBFAMILIES. 
Caenolestidae TROUESSART, 1898. Epanorthide AMEGHINO, 1889. 
Decastidx AMEGHINO, 1894. 
GENERA AND SUBGENERA. 
Name, authority, and date. Type or included species, and localities. 
Acdestis AMEGHINO, 1887 ........... Acdestis owenti, Rio Santa Cruz, Patagonia. 
Cenolestes THomAs, 1895 ........... New name for [Hyracodon Tomes, 1863. 
Callomenus AMEGHINO, 1891 ........ Callomenus intervalatus, southern Patagonia. 
Decastis AMEGHINO, 1891........... Decastis columnaris, D. rurigerus, 8. Patagonia. 
Dipilus AMEGHINO, 1890............ Dipilus spegazzinii, D. bergii, S. Patagonia. 
Epanorthus AMEGHINO, 1889........ New name for Palzxothentes Moreno, 1887. 
Essoprion AMEGHINO, 1891 ......... Essoprion  coruscus, E. consumptus, southern 
Patagonia. 
Halmadromus AMEGHINO, 1891 ..... Halmadromus vagus, southern Patagonia. 
Halmaselus AMEGHINO, 1891 ........ Halmaselus valens, southern Patagonia. 
j Hyracodon Tomes, 1868 --..-.--.-- Hyracodon fuliginosus, Ecuador. (See Cenolestes. ) 
Metaepanorthus AMEGHINO, 1894 .... Metaepanorthus intermedius, M. complicatus, M. 
holmbergi, Patagonia. 
Metriodromus AMEGHINO, 1894...... Metriodromus arenarius, M. spectans, Patagonia. 
Palzothentes® (‘Moreno’) | AxE- Palxothentes arate, P. lemoinei, P. pachygnathus, 
GHINO, 1887. P. intermedius, P. pressiforatus, P. minutus, 
southern Patagonia. 
Palaepanorthus AMEGHINO, 1902 .... Palaepanorthus primus, Patagonia. 
Paraepanorthus AMEGHINO, 1894.... Palaeothentes minutus, Rio Santa Cruz, Patagonia. 
Pichipilus AMEGHINO, 1890 ......... Pichipilus osbornii, southern Patagonia. 
Pilchenia AMEGHINO, 1903 .......... Pilchenia lucina, P. lobata, Patagonia. 
Prepanorthus AMEGHINO, 1894 ...... Prepanorthus lanius, Patagonia. 
Zygolestes AMEGHINO, 1898.......... Zygolestes paranensis, Argentina. 

a Palxothentes MorRENO, 1882 (nomen nudum), was described by Ameghino in 1887, 
but was considered a misprint for Palaeoteuthis, and being preoccupied by Palcoteuthis 
D’Orpiany, 1847, was renamed Epanorthus. 
7591—No. 23—03 56 

