HOLLAND AND PETERSON: OSTEOLOGY OF THE CHALICOTHEROIDEA. 209 
Museum, Paliontologische Sammlung (Neuhduserstrasse 51), Munich. 
Geological Horizon: Pikermi, Greece (Upper Miocene). 
S, Ms; last two upper molars 
longer than broad, hypsodont, with vertical crests of ectoloph sharp, the 
external walls more nearly vertical than in Macrotherium and Chalicotherium; 
skull long, but not narrowing in front as much as in Moropus; the anterior 
margin of the posterior nares on the median line opposite the anterior edge 
of the posterior lobe of the last molar; carpus relatively low; trapezium present’ 
(?); manus and pes tridactyl; the anterior surface of the metacarpals longi- 
tudinally concave, and the shafts more nearly trihedral in cross-section than 
in Moropus. The transverse diameter of the distal end of the radius is rela- 
tively much greater than in Macrotherium, the articulating surface in the 
latter genus being nearly quadrate, while in Nestoritheriwum as well as in 
Moropus this surface is oblong, with the antero-posterior diameter not more 
than half the transverse diameter (cf. Depéret, Mammiféres Miocénes de la 
Grive-Saint-Alban, p. 71). The distal face of the astragalus articulates 
with the navicular only; Mt. III is the longest, whereas in Moropus the meta- 
tarsals III and IV are more nearly subequal. 
ite v4 i 
Generic CHaracters: Dentition Iz, C;, P 
Subfamily MACROTHERIIN subfam. nov. 
Genus MacrotTHeEerium Lartet. 
Lartet, Comptes Rendus des Séances de |’Académie des Sciences, Tome IV, pp. 
85-93 (1837). 
Synonym Anisodon Lartet, Notice sur la Colline de Sansan, p. 30 (1851). 
Type: M. grande Lartet (Grande Anoplotherium), Comptes Rendus, J. c. Cf. 
Gervais, Zodlogie et Paléontologie Francaises, lre Ed., Tome I, p. 91; 2me Ed., 
Tome I, p. 169 (1859). 
Type Specimens: Fragments originally obtained by Lartet, the dentition referred 
by him to his ‘‘grande Anoplotherium,” the foot-bones attributed to the 
“nangolin gigantesque”’ of Cuvier. This scanty material was subsequently 
augmented by specimens obtained at the same locality, and undoubtedly 
representing the same species, which were studied, described and figured 
by Gervais under the name M. giganteum. The restoration of the fore and 
4A careful examination of the specimen preserved in Munich plainly suggests that the trapezium 
must have been present, though it is not preserved in the specimen. The facets on the radial face of Me. II 
appear to indicate articulating surfaces for this bone. 
