CRUSTACEOUS ANIMALS. 
CRAB. 
GENERIC CHARACTER. 
With eight feet, sometimes ten; rarely six. 
Fore feet terminated by claws. 
Two moveable eyes, generally projecting from the head and 
placed upon a kind of stalk. 
Tail articulated. 
SPECIFIC CHARACTER. 
Cancer ruricola. C. pedum articulo primo spinoso, secundo 
tertioque fasciculato-pilosis. Linn. Syst, 
Nat. Gmel. 1. p. 2966. 
First joints of the legs spinous, second and 
third with tufts of hair. 
Cancer brachyurus, thorace lsevi integerrimo: 
antice retuso pedum articulis ultimis pe- 
nultimisque undique spinosis. Syst. Nat. 
xii. 2. p. 1040. ho. 11. 
Land Crab. , , Sloan. Jam. 1 . pi. 2. Seb. Mus. 3. pi. 20. 
f. 5. Catesb. Carol. 2. p. 32. pi. 32. 
Degeer Ins. *J. p. 417- no. 1. pi. 25. f. 1. 
The annual migration of these crabs from the 
mountains to the seashore, in order to deposit their 
