PART III: UNGULATA, LITOPTERNA. 935 
MACRAUCHENIIDZE. 
(Including Mesorhinidz. ) 
FAMILIES AND SUBFAMILIES. 
Cramaucheninae AMEGHINO, 1902. t Mesorhinide AMEGHINO, 1891. 
Macraucheniidae Gru, 1872. Theosodontinae AMEGHINO, 1902. 
GENERA AND SUBGENERA. 
Name, authority, and date. Type or included species, and localities. 
Coelosoma AMEGHINO, 1891 ......... Coelosoma eversa, Paraná, Argentina. 
Coniopternium AMEGHINO, 1894 ..... Coniopternium andinum, Patagonia. 
Cramauchenia AMEGHINO, 1902 ..... Cramauchenia normalis, C. insolita, Patagonia. 
Diastomicodon AMEGHINO, 1884 ..... Diastomicodon lujanensis, Villa de Lujan, Ar- 
gentina. 
Heteroglyphis Roru, 1899. -.--..----- Heteroglyphis aewoletzky, Chubut, Patagonia. 
Macrauchenia OwEN, 1840 .......... Macrauchenia patachonica, Port St. Julian, Pata- 
gonia. 
Mesorhinus AMBGHINO, 1885 ........ Mesorhinus pyramidatus, Paraná, Argentina. 
Opistorinus BRAVARD, 1857 ......... Opistorinus falconerii, O. minus, Buenos Aires, 
Argentina. 
Oxyodontherium AMEGHINO, 1883.... Oxyodontherium zeballozi, Paraná, Argentina. 
Protheosodon AMEGHINO, 1897 ...... Protheosodon coniferus, Patagonia. 
Pseudocoelosoma AMEGHINO, 1891 ... Pseudocoelosoma patagonica, Patagonia. 
Scalabrinia LyDEKKER, 1894 ........ Emendation of Scalabrinitheriwm |. AwEGHINO, 
1883. 
Scalabrinitherium AMEGHINO, 1883 .. Scalabrinitherium bravardi, Paraná, Argentina. 
Theosodon AMEGHINO, 1887......... Theosodon lydekkeri, Patagonia. 
Tricoelodus AMEGHINO, 1897 ........ Tricoelodus bicuspidatus, Patagonia. 
MESORHINIDZE. (See MACRAUCHENIIDZE.) 
NOTOHIPPIDZE. 
FAMILIES AND SUBFAMILIES. 
Notohippidae AMEGHINO, 1894. {Protequidx AMEGHINO, 1891. 
GENERA AND SUBGENERA. 
Name, authority, and date. Type or included species, and localities. 
Argyrohippus AMEGHINO, 1902...... Argyrohippus boulei, A. fraterculus, Patagonia, 
Coresodon AMEGHINO, 1895 ......... Coresodon scalpridens, Patagonia. 
Yomorphippus AMEGHINO, 1901 ..... Eomorphippus obscurus, E. rutilatus, Patagonia. 
Eurygeniops AMEGHINO, 1896....... New name for Hurygenium Ameghino, 1895. 
+ Eurygenium AMEGHINO, 1895 ...... Eurygenium latirostris, Patagonia. (See Eury- 
geniops.) 
iLaunystomus Rota, L90L 22-2... .-- Jwrystomus stehlini, Patagonia. (See Pleury- 
stomus. ) 
Interhippus AMEGHINO, 1902........ Interhippus deflexus, Patagonia. 
Morphippus AMEGHINO, 1897 ....... Morphippus imbricatus, M. complicatus, M. hypse- 
lodus, Patagonia. 
Nannodus AMEGHINO, 1891 ......... Nannodus eocaenus, Patagonia. 
Notohippus AMEGHINO, 1891........ Notohippus toxodontoides, Patagonia. 
Pleurystomus AMEGHINO, 1902 ...... New name for Hurystomus Roth, 1901. 
Pseudhippus AMEGHINO, 1902....... Pseudhippus tournoueri, Patagonia. 
Rhynchippus AMEGHINO, 1897 ...... Rhynchippus equinus, R. pumilus, Patagonia. 
PROTEROTHERIID 7E. 
FAMILIES AND SUBFAMILIES. 
i Brachytherini AMEGHINO, 1891. i Protocervina AMEGHINO, 1885. 
Bunodontheridx Morrno & Mercerat, Proterotheride AMEGHINO, 1887. 
1891. Proterotheriidx Corr, 1891. 
