All this reminds us of the Conchozoa or Shell-animals as doth also their unusual covering of belts, scales, spines and long hairs.
Fam. 4. Mussel-like Thricozoa, Sloths.
Lateral and canine teeth equal in size and obtuse, incisors mostly wanting, and occasionally all the teeth; claws very large and curved—Ornithorynchi, Ant-eaters, Armadillos and Sloths.
Fam. 5. Snail-like Thricozoa, Herbivorous Marsupials.
Rodent teeth, usually with stunted proximal and canine teeth, lateral teeth level; toes mostly connate and very unequal; they live in the Old World upon roots, grass, and fruit—Wombat, Dasyure, Kangaroo, Opossum.
Fam. 6. Kracken-Haarthiere, Carnivorous Marsupials.
Mostly more than six incisors, triangular molars and large canines; live in the New World and in Australia, eating worms, insects, eggs and flesh—Vulpine Phalanger, Phascogale, Beutelratze.
The abnormal structure of the sexual parts reminds us of the same relation in the Snails and Kracken.
Order 3. Lungen-, Fell-, Ringelthier-Haarthiere—Raubmäuse.
3569. Molar teeth mostly quadriacuminate, with a break in the series, canines and pointed incisors, or rodent teeth with lateral incisors, five toes; live upon worms and insects.