242 



ASTACID^. 



DEC A POD A. 



MACROURA. 



ASTACID.^. 



LOBSTER. 

 Homarus vulgaris. Edw. 



Specific Character. — Rostrum extending beyond the peduncle of the external 

 antenna', armed with two or three strong teeth on each side, without teeth on 

 its under sarfoce. 



Cuiicer (jummarus, Linn. Faun. Suec. 2033. Syst. Nat. Herbst. II, p. 42, t. 



XXV. 



Adacus marinus, Fabr. Suppl. 406. — Penn. Brit. Zool. IV. t. x. f. 21. 



„ Latr, Hist. Nat. des Crust. VI. p. 233. 



Ilomarm vulgaris, Edw. Hist, des Crust. II. p. 334. — Couch, Corn. Faun. 



The boily is thick and rounded ; the cephalo-thorax 

 deeper than it is broad, somewhat compressed at the 



