394 MEMOIRS OF THE CARNEGIE MUSEUM. 
according to Filhol, diplarthrous in structure, while the Edentata are taxeopodous. We 
have in the Chalicotheriide the antithesis of the Condylarthra. While the latter is ungu- 
late with an unguiculate carpus and tarsus, the former is unguiculate with an ungulate 
(diplarthrous) carpus and tarsus. Thus the Chalicotheridze must be referred to a 
distinct order of unguiculate mammalia, which I propose to call the Ancylopoda, with 
the above definition. Two genera belong to the single family, the Chalicotheriide, 
viz., Chalicotheritum Kaup, and Ancylotherium Gaudry. In the former, the phalanges 
are distinct: in the latter the first and second are codssified (Lydekker). Marsh did 
not show how his genus Moropus differs from Ancylotherium. The species described 
by Marsh under this name are from the Loup Fork bed of Kansas.” 
—-—— “The Edentata of North America.’ American Naturalist, Vol. XXIII, 
pp. 657-664. 
PoucHEt, G., ET BEAUREGARD, H.—‘ Traité d’Ostéologie Comparée.” 
On p. 204 the writers say: ‘‘ Le passage entre les Lophiodontes et les Paleeotherium 
est établi par les Chalicotherides, qui, tout en possédant les mémes caractéres digitaux, 
ont une dentition plus equine; en effet les deux tubercules externes sont séparés par 
un sillon vertical et les molaires inférieures établissent le passage entre le type quadri- 
cuspide des genres anciens et la forme 4 double croissant des Palzeotherium et des che- 
vaux actuels.” 
1890. 
Fitno.t, H.—‘ Htudes sur les Mammiferes Fossiles de Sansan.” Bibliothéque de Ecole, 
des Hautes Etudes. Section des Sciences Naturelles, Tome XXXVII, pp. 1-319, 
Pl. I-XLVI. 
On pp. 294-305, the author gives an account of Chalicotherium magnum Lartet, of 
which he regards Macrotherium sansaniense Lartet as a synonym, and devotes Plate 
XLII to the restoration of the animal and Plates XLIV—XLVI to drawings of portions 
of the skull and feet. The evidence for the identity of the two genera hitherto regarded 
as distinct is given in detail. 
Scorr AnD OsBorN—“ Preliminary Account of the Fossil Mammals from the White River 
and Loup Fork Formations Contained in the Museum of Comparative Zoology.’ Bulletin 
of the Museum of Comparative Zoology, Vol. XX, No. 3, 1890, pp. 65-100. 
(The Perissodactyla were described by H. F. Osborn.) On p. 99 Moropus Marsh 
is treated as a synonym of Chalicotherium Kaup. <A fragment of a right superior 
maxillary, doubtfully referred to Chalicotherium elatum Marsh, is described and figured. 
STEINMAN (GusTAV) AND D6DERLEIN (Lupwia)—‘‘Elemente der Paleontologie,” pp. xix-+ 
848, 1030 figures in the text. 
At p. 776 there is a brief account of the Chalicotheres. 
