oj the Fishery Board for Scotland. 



209 



Gurnard, Lanthorn (Trigla obscura), 



spawning period <>f, (4) 244. 

 red or cuckoo {Trigla cuctUus), (4) 



206 ; (18) 27.-.. 



- eggs of, (16) 114, 115 ; (17) 93. 



- food of, (20) 487, 489. 



- on East Coast, (20) 540. 



parasites of, (19) 143. 



spawning period of, (4) 244. 



— Sapphirine ( Trigla hirundo), (2) 80: 

 (4) 206 ; (18) 276 ;'(19) 143. 



food of. (20) 487, 489. 



- parasites of, (20) 299. 



spawning period of, (4) 244. 



— streaked (Tngla lincata), (4) 232: 

 (15) 110 : (18)275. 



parasites of, (19) 133, 143 ; (23) 



115. 



spawning period of, (4) 244. 



Gut-poke in herring, (4) 49. 

 Gymnachirus, (18) 359. 

 — fascial us, (18) 358. 

 Gymnomera, (11) 234. 

 Gypsina inkcerens, (15) 167. 



H 



Haddock (Gadus wglefinus), abundance 



of small, (18) 282 ; (21) 32. 

 age of, at maturity, (19) 214 ; (20) 



410. 



arrangement of muscles in, (4) 168. 



average size at maturity, (22) 153. 



digestibility of, (5) 228. 



digestion in, (2) 40. 



dispersal of, after spawning, (21) 



20, 22. 



distribution of adult and immature, 



(8) 174. 



distribution of eggs of, (15) 224. 



duration of development of, accord- 

 ing to temperature, (19) 211. 



eggs of, (7) 306: (8) 284 ; (16) 91, 



114, 115 ; (17) 82-84, 93, 96, 103, 106. 



- eggs of, in Firth of Clyde, (15) 249. 

 fecundity of, (9) 255. 



feeding on fish-eggs, (4) 133. 



- feeding on herring-eggs, (4) 133. 

 food of, (4) 128 ; (6) 225, 230 ; (7) 



229. 233, &c. ; (8) 231, 241, &c. ; (9) 

 229, 235-242; (10) 216, 226, 231 ; (20) 

 306, 486, &c. 



- growth of, (5) 48, 240: (15) 19S, 

 199 ; (19) 154, 190: (20) 334, 401. 



habitat of young of, (15) 196. 



- habits of young, (4) 208. 



- hatching of, in U.S.A., (13) 339. 



hermaphroditism in, (9) 352. 



intraovarian eggs of, (16) 96. 



large old specimens of, inshore, (21) 



35. 



large specimen of, (6) 265. 



larval and post-larval stages of. (19) 



211. 



life-history of, (15) 194. 



mature and immature, (8) 174. 



mental activity of, compared with 



whitings and codlings, (22) 163. 

 minimum size at maturity, (8)161. 



162, 163. 



Haddock, on deep-water grounds, (19) 

 289. 



— parasites of. (18) 177 ; (19) 121. 13.") ; 

 (23) 108. 



pelagic habit of young, (20) 401. 



proportion of immature, landed by 



trawlers, (22) 19. 

 proportion of males to females, (8) 



349 ; (10) 239. 

 proposals for hatching of, (5) 240. 



- relation of length to weight, (22) 

 144, 14.1, 226, 241. 



- rises from bottom after spawning, 

 (19) 289. 



- sand-eel embedded in liver of, (3) 70. 

 scarcity of very small, on bottom, 



(19) 289. 



— - — sexual proportions of, (10) 239. 



size at first maturity, (10) 238 ; (19) 



213. 



sizes of, (14) 144. 



size-limit between mature and im- 

 mature, (22) 18. 

 - spawning period of, (4) 246 : (7) 



193 ; (8) 265 ; (10) 232, 234 ; (17) 97 ; 



(19) 211 ; (21) 20, 21, 28. 



tumour on, (10) 323. 



young, different habitat from young 



cod and whiting, (8) 174. 

 Norway or Bergvlt, (Sebastes nor- 



vegicus), (4) 222; (19) 288; (22) 20, 



21, 23, 28, 29. 



food of, (20) 489 ; (21) 218. 



spawning period of, (4) 244. 



Haddon, Professor A. C, (6) 281 ; (7) 



387. 



Haeckel, Professor, on plankton investi- 

 gations, (9) 407. 



Ha&mobaphts ambiguus, (18) 162; (20) 

 298. 



cycfopterina, (9) 310 : (18) 162 ; (20) 



298. 



Hazmopsis vorax, (9) 27-">. 



Haghsh (Myxine ghtibwsa), (8) 177, 375 : 



(18) 293. 



caught on lines, (3) 66. 



eggs of, (3) 66. 



food of, (8) 255. 



mature and immature, (8) 177. 



reproductive organs of, (3) 66. 



spawning of, (8) 269. 



structure of tail of, (4) 211. 



Hake (Merluccius vulgaris), (10) 262 : 



(15) 111 : (18) 283 ; (21) 62. 

 caseous tumours in muscles of, (3) 



76. 



distribution of, (21) 62. 



eggs of, (17) 93. 



- food of, (7) 240. 



mature and immature, (8) 177. 



parasite of. (18) 166, 175, 178; (19) 



135, 148. 



spawning period of, (4) 248 ; (7) 195. 



young of, (8) 177 ; (21) 63. 



Hahcium muricatum, (15) 164. 

 Halia trispinosa, (6) 253. 

 Halibut ( Hippoglotus vulgaris J, (8) 265 ; 

 (15) 112 ; (18) 284, 352 ; (21) 53. 



composition of, (5) 228. 



digestibility of. (5) 228. 



