74 



Crabs : 



Decrease in size : — Mevagissey, 4, 5 ; Sidmouth, 7 ', Budleigh Salterton, 7 ; 

 Polruan, 8; Penzance, 15; Polperro, 22; London, 

 25 ; Southport, 31 ; North Sunderland, 32 ; 

 Beadnell (inshore), 34; Hawxley, 38; Whitby, 

 40, 42; Scarborough, 44; Flamborough, 48., 49; 

 Bridlington, 51 ; Selsea, 66. Generally, 67. 



Different species of, 29, 51, 56, 61. 



Enemies of, 16, 33, 48. 



Food of, 2, 16, 38, 54, 62. 



Growth of, 1, 3, 23, 41, 51, 60. 



effect of temperature on, 56. 



Habitat, 2, 3, 5, 21, 36, 39, 41, 48, 62. 



Increase in numbers: — Gorran Haven, 3, 6; Porthgwarra, 16; Sennen, 

 18; Cadgwith, 19; Polperro, 22; Cr aster, 33, 

 (in shore) 34. 



Increased demand for, 3, 9, 14, 27, 32. 



Injured by pollution, 38, 39, 40. 



east wind, 48. 



Kept in store pots and pits, (see " Store pits.") 



Light (see " Crabs, soft.") 



Migration of, 2, 3, 10, 14, 17, 21, 22, 23, 36, 38, 41, 46, 49, 50, 52, 54, 60, 

 61, 63. 



Mode of counting, 1, 3, 8, 13, 18, 19, 22, 25, 26, 27,40, 48, 49, 55, 56,61. 



Nicking and plugging of, 5, 9, 13, 23, 62. 



No decrease : — Gorran Haven, 4, 5, 6; Mevagissey, 5 ; Land's End, 16; 

 Porthgwarra, 17; Sennen, 18; Cadgwith, 19 ; Beadnell, 34 ; Hawxley, 

 37; Flamborough, 49; Bridlington, 49; Hall Sands, 52; Beeson 

 Sands, 52 ; Hope, 54 ; Plymouth, 56 ; Wembury, 57, 59 ; Bolt Head, 

 59; Generally, 64,^68. 



Ova, number of, in, 57. 



Oysters attached to, 56. 



Pollutions, effect of (see " Pollutions.") 



Price of, 1, 3, 4, 5, 6, 8, 17, 19, 20, 21, 27, 30, 32, 35, 36, 51, 52, 58, 62. 



Relative quantities of males and females, 1, 13, 16, 17, 19,46, 47, 53, 54, 



61, 63. 



values of males and females, 27, 56, 57, 58, 60. 



Season for, 1, 7, 14, 18, 31, 32, 38, 60, 63. 



Sent away alive, 58, 61. 



Small, are thrown overboard, 2, 6, 15, 38, 42. 



used to be thrown overboard, 10. 



on the north-east and south coast, 27, 29, 45, 46, 48, 49, 51, 61. 



Soft do not need protection, 16, 26. 



found all the year round on certain ground, 56. 



on sand, 41. 



used as bait, 16, 65. 



should be returned, 2, 8, 21, 28, 29, 31, 32, 34, 44, 45, 46, 51, 52, 



56, 57, 59, 60, 61, 63, 64, 66, 67, 68, 69. 



are returned, 35, 36, 44, 49, 50, 51, 54, 58. 



Spawning of, 1, 2, 3, 5, 6, 7, 14, 17, 18, 22, 23, 27, 32, 34, 36, 38, 39, 42, 

 45, 46, 47, 52, 53, 54, 55, 56, 57, 59, 60, 61, 63, 66. 



Storms, effect of on, (see tf Weather.") 



Travel with claws tied, 10, 11. 



Used for bait, 2, 4, 8, 9, 15, 17, 19, 21, 22, 33, 42, 53, 54. 



Value of as food, 36, 57. 



Weight of meat in, 8, 14. 



White (see " Crabs, soft.") 

 Crayfish : 



At Scilly, 2. 



Decrease of, 6, 17, 20, 29,34. 



Migration of, 6, 16, 19, 20. 



Should be protected, 7, 8, 9, 29, 58. 



Season for, 16. 



Sent to Paris, 62. 



