138 
Cod, size of, at first-maturity, (19) 228 ; 
(22) 158. 
—~- size-limit between mature and im- 
mature, (22) 18. 
spawning at Faerie, (23) 33. 
—— spawning grounds of, (7) 195; (8) 
266 ; (15) 194, 223 ; (23) 20, 253. 
in Dornoch Firth, (23) 20. 
spawning of, in autumn in North 
Sea, (23) 253. 
—— spawning period of, (4) 246; (7) 
195; (8) 266; (10) 232, 234; (15) 222 ; 
(17) 97 ; (19) 227; (23) 253: 
—— specific description of, (20) 248. 
—— tumour in, (10) 324. 
—— varieties of, (7) 404. 
—— voracity of, (4) 134. 
—— with one eye, (11) 294. 
young, caught by bag-net fishing, 
(23) 157. 
—— young, not common on deep-water 
grounds, (19) 289. 
Ceelenterata, pelagic, of Firth of Forth, 
(16) 194. 
Cold, influence of, on fishes, (9) 420. 
Coleoptera, (8) 339; (9) 273. 
Collocheres gracilicauda, (19) 252. 
Colour, change of, in fishes, (3) 69. 
Comber. See Serranus cabrilla. 
Common dab. See Dab, common. 
eel. See Eel, common. 
gurnard. Sce Gurnard, grey. 
— mussel. See Mussel, common. 
sole. See Sole. 
Comparative abundance of young and 
old fish at different seasons, (6) 8. 
Comparative growth of round fishes and 
flat fishes, (20) 334. 
Comparison of amounts of fish landed by 
line fishermen and beam-trawlers, (6) 7. 
Composition of flesh of salmon, (5) 222, 
228, 229. 
Conchecea elegans, (20) 476, 517. 
Conchoderma auritum, (6) 236. 
—— virgata, (6) 236. 
Configuration of the sea on the north- 
west of Scotland, (6) 350. 
Conger-eel (Conger vulgaris), (15) 113; 
(18) 288. 
—— eggs of, (9) 392. 
—— fecundity of, (9) 243. 
—— food of, (20) 308, 313, 487, 534. 
—-—- parasites of, (18) 160, 180; (19) 127. 
—— reproduction of, (9) 392; (10) 236. 
—— spawning period of, (4) 253 ; (9) 392. 
—— young of, (22) 281 ; (23) 251. 
Conger niger. See Conger-eel. 
Congericola pallida, (18) 160; (19) 127. 
Coniothecium bertherandi, (6) 205. 
Contemporary fishery work, (6) 276; (7) 
384; (8) 359; (9) B88; (10) 326; (11) 
486 ; (12) 383; (13) 332. 
Co-operation in mussel-growing, (7) 340. 
Copepoda as food for herrings, (4) 102, 
124, 
—— of young lobster, (23) 67. 
—— effect of variations in salinity on, 
(17) 118. 
—— eggs of, (8) 363. 
—— food of, (15) 216. 
Part TIT.—Twenty-third Annual Report 
Copepoda of Loch Fyne, (4) 147; (15) 
145 ; (16) 264. 
—— of Loch Fyne, seasonal abundance 
of, (4) 147; (17) 114. 
—— of Loch Fyne, vertical distribution 
of, (17) 116. 
—— of Lochs and Inland Waters. See 
Fauna, invertebrate. 
—— of the English Channel, (7) 335. 
—— parasites of fishes, (18) 145, 179; 
(19) 121. 
—— parasite of lobster, (19) 255. 
—— parasitic, (20) 288 ; (23) 108. 
—— relation of temperature to abund- 
ance of, (17) 114. 
—-~— volumetric determination of, (17) 
112. 
o 
Corbula gibba, (15) 128 ; (20) 503, 510. 
Coregonus pollan. See Pollan. 
—— vandesius. See Vendace. 
Corella parallelogramma, (15) 114. 
Corethron hystrix, (15), 298, 299. 
Coris julis. See Wrasse, rainbow. 
Cornuspira foliacea, (7) 311; (15) 165. 
tnvolvens, (16) 274. 
—— planorbis, (7) 311. 
striolata, (7) 311. 
Cornwall Sea Fisheries Committee, (13) 
10. 
Corophium affine, (19) 266 ; (20) 479, 511. 
bonellu, (6) 249 ; (15) 141. 
—— crassicorne, (6) 230, 249; (14) 161; 
(15) 141. 
grossipes, (6) 249; (19) 266; (20) 
492, 507, 525, 527. 
—— longicorne, (6) 249. 
spinicorne, (6) 249. 
tenuicorne, (6) 249. 
Coryceus anglicus, (14) 163; (18), 397; 
(19) 251. 
Corystes cassivelaunus, (6) 257 ; (18) 404. 
Coscinodiscus anguste-lineatus, (15) 299. 
— — concinnus, (15) 214. 
—— curvatulus, (15) 299. 
—— excentricus, (15) 214, 
—— minor, (15) 299. 
—— oculus iridis, (15) 300. 
—— radiatus, (15) 214. 
Cottus, young stages of, (9) 323. 
—— long-spined (Cottus buhbalis), (4) 232; 
(15) 110; (18) 275. 
eggs of, (16) 91. 
—— fecundity of, (9) 249. 
—— size at maturity, (10) 238. 
—— spawning period of, (4) 244, 
—— hiljeborgu. See Bullhead, Norway. 
—— scorpius. See Scorpion, sea-. 
Couch’s whiting. See Whiting, Couch’s. 
Couper, Mr Wm., (8) 23; (9) 21, 177; 
(10) 23, 188 ; (11) 24. 
Crab and Lobster Act, (18) 139. 
Crab as bait, (18) 140. 
digestibility of, (5) 228. 
—— edible (Crangon pagurus), (6) 256; 
(15) 130 ; (20) 534. 
—— —— berried females, (18) 79. 
—— —— casting of, (18) 83, 104. 
—— —-— changes in carapace of, (22) 136. 
—— —— characters of mature female, 
(18) 79. 
