ANALYTICAL INDEX. 277 



. i'll.i; \\ I. Continued. 



The Cmetr mamm kill and devour one another, . . r*ori4.. 



Crab* and Lobstort eagerly sought after at food, ib. 



Imported from Norway to the London market; and MOM of the Wes- 

 tern Islet are said to yield 60,000 annually, US 



None bat rocky coasts are frequented by Lobtten and Craba, ib. 



The common Crab and Lobster only used for food in Scotland, 



not so in the Adriatic, ... ib. 



Some genera so peaceable and inactive, that many ipecimeni are 



overgrown with marine vegetables, ... ib. 



Progeny of a tingle Crab, (pared for two teasons, would probably 



tatufy 10,000 people, .... 147 



The texet distinguished by the shell, . . . . ib. 



The roe adheres to the tbell of the female until the fietus burttt the egg, 1 48 



A few tribe* of Cnutacea ditcharge the ora through long tube*, ib. 



Mott Cnutacea undergo great changet in their progreM to maturity, ib. 



An error to imagine that animal* protected by a hard integument 



undergo no alteration with the lost of life, . 149 



Habits of the crustaceans extremely diversified, . . ib. 



Death simulated to escape danger, ... ib. 



The integument of tome it horny or coriaceous, . .150 



The crustacean tribes treated of divided into three portions, ib. 



PART I. A. DECAFODE*, TEN-LIMBED, SHORT-TAILED CRAM, BEACBYOTU, ib. 



1. CANCER #.**&, The Shore or Harbour Crab, . . ib. 



Its form and organs, ..... 151 



Crustacean class compared to insects, . . . . ( ib. 



Dr Milne Edwards, 152 



Principal divisions not more than two in the crab, . . ib. 



Green the prevailing colour, .... ib. 

 Habits and disposition, ..... 158 



Food, ib. 



External integument an indurated shelly corering, . .154 



Occurs of all different dimensions, .... ib. 



At certain seasons the limbs fall of fleth, . . ib. 



Acquires a new shell when the old it insufficient, . . ib. 



The change effected again and again, . . . 155 



Specimens about to exuviate usually dull, heavy, and inactive, 156 



Tie aamalefcaDM from the hiid part of the thelL. . ib. 



Specimen from Blackness Cattle itt exuviation, . 157 



Became very tame something like memory demonstrated, . 158 



Exuviation verified by another specimen, . . . 159 



Female tpawned after eighteen months, . 161 



b 



