ASTACUS. 101 



down the middle. Carapace finely granulated, of a greenish- 

 grey. 



Hab. Kivers and streams, betaking themselves to holes 

 in the banks. 



This species is eaten, but has no great flavour. 



Gen. 36. ASTACUS, Fair, 



Beak narrow, and armed with several teeth on each side^ 

 Eyes spherical. Last joint of carapace cemented to the 

 preceding. Outer antennae with the basal plate small, and 

 resembling a movable tooth. Hands extremely large, and 

 compressed, the wrist elongated. 



Astacus Gammarus."* Lobster. — Beak longer than the 

 peduncle of outer antennae, armed on each side with three 

 conical thick teeth; there are no teeth on the under sur- 

 faced 



Found generally on our rocky coasts. 



In fishing for lobsters, according to Mr. Couch (Cornish 

 Eauna, p. 78), bait is used which is tainted, or has been pre- 



* Cancer Gammarus, L. ; Astacus marinus, Fair. ; Homarus vulgaris, 

 M. Echo. 



f Iu the American Lobster the under side of the beak has two conical 

 teeth placed near the point. 



