220 
Mackerel of east and west coasts of 
Scotland, (18) 294. 
—— parasites of, (19) 124, 135, 146. 
—— question of racial differences among, 
(18) 294. 
question of 
among, (18) 312. 
sizes and sex of, (18) 302. 
spawning period of, (4) 245; (17) 
98 ; (18) 327. 
specific gravity of eggs of, (7) 386. 
— weight of ripe and unripe, (18) 328. | 
Mackie, Mr R., (10) 286. 
Maclagan, Nellie, (2) 74. 
MacMunn, Dr A. C., (7) 386, 387. 
Macrocypris minna, (19) 236, 257. 
Macromysis flexuosa, (15) 133. 
Macropodia longirostris, (15) 130. 
—- rostrata, (15) 130; (16) 156, 209. 
Macropsis slabberi, (6) 254 ; (8) 332 ; (16) 
158, 162, 209 ; (19) 277 ; (20) 532. 
Macrostylis spinifera, (19) 236, 272. 
Macrothrix hirsuticornis, (14) 239, 242. 
laticornis, (11) 231, 
Macrurus levis, food of, (20) 501. 
occurrence of, (20) 541. 
Mactra elliptica, (15) 127. 
-—— stultorwm, (6) 231. 
—— subtruncata, (15) 127. 
Madreporite of Cribella oculata, (6) 280. 
Mera batei, (14) 160. 
grossimana, (6) 247 ; (7) 327. 
lovent, (7) 327 ; (19) 264; (20) 478, | 
516, 520. 
othonis, (6) 247 ; (15) 140; (18) 402 ; 
(19) 264. 
Mair, Mr Wilham, (8) 
244; (10) 23, 29; (11 
22, 56. 
Maitland, Sir J. Ramsay-Gibson, (5) 43 ; 
(6) 25 ; (7) 12, 382 ; (10) 192, 331. 
Maldane biceps, (15) 158. 
Mallotus villosus. See Capelin. 
Malm, Dr, (9) 408 ; (10) 344 ; (138) 16. 
Mancopsetta, (18) 361. 
Mangelia attenuata, (15) 118. 
leevigata, 15) 318. 
Maraénobiotus vejdovskei, (14) 168, 169 ; 
(16) 249 ; (17) 172, 178, 183, 189. 
Margarita helicina, (15) 122. 
Marginuina glabra, (16) 277. 
Marine Biological Association of the 
U.K., (6) 298; (8) 361; (9) 390; (12) 
385 ; (13) 332. 
laboratory, Plymouth, (6) 15, 
298 ; (7) 385. 
station at Puffin Island, (8) 362. 
currents, transport of fish eggs by, 
(13) 18, 185; (14) 15. 
diatoms, (15) 15. 
—— Fisheries Society, (6) 300; (8) 161. 
— fishes of Loch Fyne, (15) 107. 
food-fishes: food, spawning, 
habits of, (7) 182. 
—— laboratory at Arcachon, work of, | 
(7) 392. 
——- at Boulogne-sur-mer, work of, 
(7) 390. 
— at Concarneau, work of, (7) 
sexual differences 
257 ; (9) 21, 177, 
) 24, 29, 30; (14) 
and | 
| Marketable 
389 ; (8) 373; (9) 418. 
Part ITL.—Twenty-third Annual Report 
Marine laboratory at Helder, (9) 413. 
at Heligoland, (9) 405. 
—— —— at Marseilles, work of, (7) 392; 
(8) 371; (9) 418. 
—— —— at St. Andrews, (6) 279; (13) 
(3) 55. 
—— pisciculture, practical results of, (13) 
10. 
Marion, Professor, (7) 384, 392; (8) 21, 
371; (9) 389, 418; (10) 160. 189, 294, 
352 ; (11) 21, 239, 487 ; (18) 16. 
and unmarketable fishes, 
classification of, (21) 40. 
Marking fish by labels, (7) 406. 
Mar! deposits in Loch Doon, (17) 174. 
at St. Andrews, description of, 
| Mars Bank, (9) 181. 
Masterman, Dr, A. T., (11) 250; (12) 
AE (18) 289, 279; (14) 294; (15) 
293 
Matthews, J. Duncan, (5) 245, 257, 295 ; 
(6) 25 ; (9) 381 ; (17) 274. 
Maturation of eggs. See Eggs. 
Maturity, average size of haddock at, 
(22) 153. 
average size of plaice at, (18) 190; 
22; 156. 
average size of whiting at, (22 
150. 
minimum size of grey gurnard at, 
(17) 223. 
of edible crab, size at, (18) 79. 
—— of fishes, (10) 18. 
—— of plaice, variation of size at, in 
different regions, (20) 358. 
sexual, in sturgeon, (6) 303. 
—— size at which fishes reach, (10) 236. 
of cod at, (19) 228 ; (22) 158. 
of edible male crab at, (18) 97. 
of female edible crab at, (18) 
79. 
—— —— of haddock at, (19) 213. 
of Norway pout at, (19) 164. 
—— —— of plaice at, (20) 357. 
—— —— of sprat at, (22) 181. 
—— -—— of whiting at, (20) 399. 
of witch at, (22) 195. 
Maurolicus pennantii. See Pearl-sides, 
| Mazocres alose, (19) 145. 
Measurements of fish, importance of, (20) 
326, 330. 
Measuring-table for fishes, (20) 330. 
Medusidee interfering with trawling 
operations, (20) 94, 95, 103. 
Meek, Mr Alex., (17) 117; (22) 186. 
Megaluropus agilis, (8) 326; (18) 402; 
(20) 478, 491, 510; (22) 243, 257. 
| Megamera othonis, (6) 247. 
Megamphopus cornutus, (14) 161; (20) 
479, 517. 
Megrim (Lepidorhombus whiff), (7) 325; 
(12) 224; (18) 286, 357 ; (21) 50. 
—— abundant in deep water on north- 
eastern grounds, (21) 50. 
—— development of, (10) 292. 
—— distribution of, (21) 50. 
—— eggs of, (16) 91, 114. 
—— egg resembling that of, (12) 224. 
in Firth of Clyde, (15) 250, 
