UNQULATA PERISSODACTYLA. 
Mamm. 17 
their dental and osteological characters as “ consistently perissodactyle.” 
Am. J. Sci. (3) xi. pp. 401-403. 
W. H. Flower considers this group to be somewhat intermediate 
between the Perissodactyla and Proboscidea, but nearer to the former 
than was at first supposed. P. R. Inst. viii. pp. 116-118. 
Bathmodon, Cope, = Coryphodon, Owen ; as in other Eocene Mammals 
its brain was extremely small ; O. C. Marsh, Am. J. Sci. (3) xi. pp. 
425-428. 
Coryphodon hamatus, sp. n. (foss.), id. 1. c. p. 426, Eocene of Wyoming, 
Titanotheriid.®. 
O. C. Marsh recognizes four genera of his family Brontotheriidce, 
I, Menodus, Tomel, 1849 (= Titanotherium,ljeidy, 1852); 2, MegaceropSy 
Leidy; Brontotherium, Marsh; and 4, Z>iconof?ow, Marsh . They may 
yet prove to be nearly related to Diplacodon. The skeleton of Bronto- 
therium is described, and the skull, teeth, feet, and a cast of the brain 
cavity are figured. Am. J. Sci. (3) xi. pp. 335-340, pis. x.-xiii. ; transl., 
J. Zool. V. pp. 248-255, pi. xii. Cf.V. Gervais, tom. cit. p. 166. 
W. H. Flower retains Leidy’s name Titanotherium, V om^Vs Menodus 
being too close to Menodon, V. Meyer. P. R. Inst. viii. p. 108. 
RniNOCERONTIDiE. 
W. H. Flower points out the cranial and dental characters of the 
existing species, and recognizes the following groups, which may be 
considered either as generic or sub-generic : I. Rhinoceros, Linn., with 
R. unicornis and R. ^ondaicus; II. Ceratorrhinus, Gray, with C. surna- 
trensis and C. lasiolis ; III. Atelodus, Pomel, with A. hicornis and A. 
simus. To include all the extinct forms, three other genera must .be 
added, Aceratherium, Kaup, Diceratherium, Marsh, and Hyracodon, 
Leidy. P. Z. S. 1876, pp. 443-467. 
P. L. Sclater figures the species now or lately living in the Zoolo- 
gical Gardens of London (R. unicornis, sondaicus, sumairensis, lasiotis, 
and hicornis), and remarks on the history of the individuals in question. 
Tr. Z. S. ix. pp. 645-660, pis. xcv.-xcix. 
W. H. Drummond has notes on the African species, of which either 
four or five are regarded as distinct. P. Z. S. 1876, pp. 109-114. 
J. F. Brandt remarks on the fossil species hitherto found in Russia; 
Bull. Pdtersb. xxi. pp. 81-84. 
Rhinoceros sumatranus. H. Filhol states that a fossil premolar, not 
specifically separable from that of the Rhinoceros of Sumatra, was shown 
him in New Caledonia,- and was stated to have been found in that island. 
Ann. Sci. Nat. (6) iii. art. 2. * 
Rhinoceros antiquitatis (= tichorrhinus) . Preliminary remarks on a 
microscopical examination of the remains of its food, which consisted of 
plants of a northern type; J. Schmalhausen, Bull. Petersb. xxii. pp. 
291-295. 
1876 . [voL. XIII.] B 2 
