208 LUTRA, MADREPORA. 
body red, with eight rows of prickles which 
are invisible to the naked eye ; 140 rings with 
four pair of prickles to each. 
See MS. P. 
i—3. Lutrra. Spec. 8. 
canadensis, (otter,) hind feet palmate; black; fur 
smooth ; tail long, tapering. 
communis, (common otter,) hind feet. palmate, na- 
ked ; tail halfas long as the body; fur deep 
brown; whiskers large; ears short ; feet five- 
toed. 2 feet long. 
See MS. P. 
M. 
1—3. Macnrorus. Spec. 3 
major, (Kkanguroo,) tail long, thick ; hind feet three 
times as long as the fore feet ; three- toed. 
See MS. P, 
4—3. Macrourvus. Spec. 1. 
riupestris, dorsal fins two, the first ray of the firs: 
fin toothed backward. ‘Three feet long. 
See MS. P. 
9—3. Macrra. Spec. 16. 
solida, shell opake, smoothish, sub-antiquated. 
Iutraria, shell oblonz-oval, smooth, without late- 
ral teeth. Resembles a Mya. 
See MS. P. 
13—2. Maprepora. Spec. 118. 
Section A. Composed of a single star. 
curbinata, (stone knot,) turbinate, sessile, witha 
a hemispherical concave star. Found fossil, 
