Family Nasicornia. Front teeth either none, or upper 2 and lower 4, inclused. 'Pro laniariis diatema'. Numerous complicated molars. There is one horn or two horns on the nose. Mammae, 2 openings abdominal. Feet with three hoofs. 'Ungues ungulae 3 insistentes.'
Genus Rhinoceros. Dentes primores his nulli, illis supra 2 minuti decidui, infra 2 minuti conici inter 2 majores cylindricos, omnes inclusi. Pro Laniariis diastema. Molares complicati tuberculati, supra infraque untrinsecus 7. Rostrum productum chilomate obtuso, labro in processum mobilem excurrente. Cornu unicum aut duo cornea solida acuta, naso imposita. Auriculae oblongae, capite multo breviores, basi infundi buliformes. Corpus setis varis obsitum. Cauda brevis. Mammae apertae 2 ventrales. Pedes distincti ambulatorii, tridactylis digitis cute obvolutis. Ungues ungulae tres insistentes, omnes apticae. Species: Rhinoceros bicornis, Rhinoceros unicornis.
18th family - Nasicornia (horn-carrying hoofed animals)
