ENPages
p.6
Order Pachydermata.
Teeth two or three kinds; four extremities formed for progression, the toes furnished with nails or hoofs varying in number; no clavicles;
p.7
Genus Castor, Linnaeus
Harlan, Fauna Am. p. 122.
Incisors 2/2, Canine 0/0, molar 8/8,= 20. Incisors very strong, anterior faces even and flat, posterior faces angular; molars compound, their crowns nearly plane, presenting circumvolutions of enamel and grooves on their sides, viz. 3 external & 1 internal on the molars of the upper jaw- 1 external and 3 internal on those of the upper lower jaw; five toes on each foot, the anterior short and not separate, the posterior longer.
p.1
Bootherium P. 1 p 366
Genus Bos, Linnaeus
Harlan Fauna Am. p. 267
Incisors 0/8, canine 0/0, molars 12/12,= 32. Inferior incisors regularly arranged, broad; facial line straight; horns simple, conical, smooth, a transverse section circular, of various curvatures, but often directed laterally, with the point elevated.
p.2
Genus Bootherium, Leidy Smithsonian Contributions to Knowledge Vol. 5 Art. 3 p.12 (1852
The os frontis rises into a hump, or forms a prominent process, from the sides of which arise the horn = cores; the latter arise above and posterior to the orbits, but considerably in advance of the inion, & curve downwards in their course, but do not turn up at the tips; as in [ovi?] the species possess lachrymal depressions, or larmiers, as well developed as in cervine animals. - Closely allied to the Musk Ox, Ovibos moschatus Blainv. ; and intermediate between Bos & Ovis.
