2 MAMMALIA. 
III. Quadrisulca. Rhinoceros, Hippopotamus, &c. 
B. Uneurcutata. 1. Bifido. Camelus. 2. Multifido. 
a. Digitis indivisis. Elephas. 3. Anomala. Tatou sive Arma- 
dillo, Tamandua, and Ai sive Ignavus. 
Linnezus (Systema Nature, ed. 12, 1766) divides the Hoofed 
animals into three orders, and arranges the genera thus :— 
Order II. Brura. 5. Elephas. 7. Bradypus. 8. Myrmeco- 
phaga. 9. Manis. 10. Dasypus. 
Order V. Pecora. 27. Camelus. 28. Moschus. 29. Cervus. — 
30. Capra. 31. Ovis. 32. Bos. 
Order VI. BeLtuz. 33. Equus. 34. Hippopotamus. 35. Sus. 
36. Rhinoceros. 
Thomas Pennant, in the Synopsis of Quadrupeds, 1771, 8vo, 
divides these animals thus :— 
I. Hoorep QuaprRupeEps. 1. Whole-hoofed. Horse. 2. 
Cloven-hoofed. Ox, Sheep, Goat, Giraffe, Antelope, Deer, Musk, 
Camel, Hog, Rhinoceros, Hippopotame, Tapir, Elephant. 
Il. DietrareD: QuaDRUPEDS. 4. Without cutting teeth. 
Sloth and Armadillo. 5. Without teeth. Manis, Ant-eater. 
Professor Charles [liger (Prodromus Systematis Mammalium 
et Avium, 1811) arranged the Hoofed quadrupeds as follows :— — 
Order V. MuttuneuLa. Fam. 16. Lamnunguia. 55. Li- 
pura. 56. Hyrax. 17. Proboscidea. 57. Elephas. 18. Nasi- 
cornia. 58. Rhinoceros. 19. Obesa. 59. Hippopotamus. 20. 
Nasuta. 60. Tapirus. 21. Setigera. 61. Sus. 
Order VI. SotipuNGuULA. 22. Solidungula. 62. Equus. 
Order VII. Bisutca. 23. Tylopoda. 63. Camelus. 64.. 
Auchenia. 24. Devera. 65. Camelopardalis. 25. Capreolt. 
66. Cervus. 67. Moschus. 26. Cavicornia. 68.:Antilope. 69. 
Capra. 70. Bos. 
Order VIII. Tarpicrapa. 27. Tardigrada. 71. Bradypus. 
72. Choleepus. 73. Prochilus. 
Order IX. Erropientia. 28. Cingulata. 74. Tolypeutes: © 
75. Dasypus. 29. Vermilingua. 76. Orycteropus. 77. Myrme- 
cophaga. 78. Manis. 
Order X. Reprantia. 30. Reptantia. 79. Tachyglossus. 
80. Ornithorhynchus. 806. Pamphractus. 
C. S. Rafinesque (in his Analyse de la Nature, 12mo, 1815) 
divides the Hoofed quadrupeds into orders, thus :— 
Order IV. Srereopiia. 1. Stereopodia. Fam. 8. Solipedia. 
Caballus. 2. Bisulcia. Fam. 9. Camelinia. Camelus, Mos- 
chus. Fam. 10. Ruminalia. 1. Stereoceria. Cervus, Munt- 
jacus, Giraffa. 2. Cerynxia. Taurus, Aries, Hircus, Antilope, &ce. 
Order V. PachypeRMiA. Fam. 11. Bellua. 1. Rhinoceria. — 
