98 NEW-YORK FAUNA. 
L. artemesia. (Bacuman, Ib. Vol.-8, p. 94.) Grey above, beneath white; back of the neck and legs 
pale rusty; ears as long as the head. Length 13 inches. Oregon: 5 i P 
L. bachmani. (Bacuman, Ib. Vol. 8, p. 96.) Deep grey above, beneath greyish white; ears longer 
than head. Length 11 inches. . 
Genus Lacomys, Geoffroy. Ears moderate; hind legs not much longer than those before; clavicles 
more developed than in Lepus; molars ten above and ten beneath. Tail none. 
L. princeps. (Ricuarpson, F. B. A. pl. 19.) Blackish brown above, beneath greyish fawn; head 
short and thick ; ears broad and rounded; legs short; toes with naked tubercles. Length 6 -7 
inches. Rocky Mountains. 
ORDER V. EDENTATA. 
Without incisors, and in several of the genera, with no teeth whatever. They have large 
and strong claws, covering the ends of the toes. Covered with long and coarse hairs, or 
with scaly plates. Occasionally the mouth drawn out into a flattened beak, and presenting 
great anomalies in their reproductive organs. Not ruminating. Feed chiefly on vegeta- 
bles, but also on insects and carcases. 
Ons. About twenty-four species, arranged in fourteen genera, are known at present, in North 
and South America, Africa, India and Australia. Although numerous in the hot and tempe- 
rate parts of South America, no living representative of this order has been found within the 
United States, Two fossil genera have been described, but neither have been discovered in 
this State. 
(EXTRA-LIMITAL.) 
Genus Mrearuertum, Cuvier. Anterior toes four, posterior three. Size gigantic. Claws large, 
and with a bony sheath. Molars eight above and eight beneath; crowns of the molars with two 
transverse angular ridges. Body covered with a bony coat of armor. Tail large and very robust. 
Clavicles perfect. Herbivorous. 
M. cuvieri. (Mrreuitz, Ann. Lye. Vol. 1, p. 58. Cooper, Ann. Lye. N. Y. Vol. 1, p. 114, pl. 7; 
Vol. 2, p. 267.) Toes with strong claws, two of which are rudimentary. Height seven feet; bulk 
of the rhinoceros. (Marshes of Skidaway Island, Georgia; and said to exist also at White Bluff, 
sea coast of Georgia. Originally found near Buenos Ayres. Another from the Rio del Sauce, 
near Montevideo.) 
Genus Mreatonyx. Claws large, nearly seven inches long, and furnished with a bony sheath. Molars 
eight beneath, composed each of a simple cylinder of enamel ; crowns simple cavities, surrounded 
by the enamel. Clavicles perfect. 
