196 
Duncker, Dr, (16) 228 ; (18) 226. 
Duration of reproductive life, (10) 238. 
Durham, Mr Herbert E., (6) 280. 
Dusky Perch. See Serranus gigas. 
Dutch fisheries, (6) 15, 307. 
fishermen, (10) 209. 
Duthie, Mr Robert, (9) 177, 181; (10) 
202, 288, 289 ; (11) 242, 246; (12) 17, 
187, 218; (13) 15, 174; (14) 15, 229, 
&e. : 
Dyopedos porrecta, (9) 308. 
Dyspontius curticaudatus (23) 148. 
normant, (20) 473. 
striatus, (6) 232. 
E 
Eartu worms as bait, (7) 356. 
East Coast fisheries, development of, (10) 
16. 
Ebalia cranchit, (6) 257. 
—— tuberosa, (6) 257 ; (15) 130 ; (20) 536. 
Echinocardium cordatum, (15) 162; (20) 
317, 319, 324. 
—— flavescens, (20) 317, 319, 324. 
Echinocyamus pusillus, (6) 230 ; (20) 316, 
BIO o24, O10, b2i7s 
Echinoderms of Cromarty Firth, (20) 304. 
—-— of Loch Fyne, (15) 160. 
—— of Moray Firth, (20) 304. 
—— as food of cod, (4) 136, 145. 
as food of haddocks, (4) 129. 
Echinopleura aculeata, (19) 236, 272. 
Echinus acutus, (20) 315, 319, 324. 
—— esculentus, (7) 324; (15) 162; (20) 
316, 319, 324. 
—— miliaris, (6) 230; (15) 162; (20) 315, 
319, 324. 
—— norvegicus, (20) 315, 319, 324. 
—— sphera, (7) 347. 
Echiurus owyurus, (8) 332. 
Echthrogaleus coleoptratus, (18) 156; (19) 
125 ; (20) 292. 
Ectinosoma armiferum, (13) 166. 
—— atlanticum, (9) 301, 302; (15) 149, 
307, 315 ; (20) 532. 
—— curticorne, (13) 166; (15) 149; (17) 
253 ; (21) 113: 
—— erythrops, (8) 318 ; (16) 267. 
gracile, (13) 166; (17) 253; (18) 389; 
(21) 113. 
herdmant, (13) 166; (15) 149; (17) 
253 ; (21) 118. 
longicorne, (13) 166. 
— melaniceps, (8) 318 ; (15) 149; (20) 
457, 492. 
— normani, (13) 166. 
propinquum, (13) 166. 
pygmeum, (13) 166 ; (15) 149. 
—— sarsi, (15) 149; (20) 503, 511. 
—— spinipes, (6) 239. 
—— tenuicorne, (13) 166. 
—— tenuipes, (13) 166. 
Edington, Dr A., (6) 207 ; (7) 12, 368. 
Edwardsia callimorpha, (15) 163. 
—— carnea, (15) 163. 
Eel, common (Anguilla vulgaris), (15) 
113; (18) 288. 
—— composition of, (5) 228. 
—— digestibility of, (5) 228. 
Part LIT.— Twenty-third Annual Report 
Kel, eggs of, (8) 356. 
—— external differences between males 
and females, (13) 203. 
—— fecundity of, (8) 356. 
—— female reproductive organs of, (13) 
—— food of, (20) 487, 533. 
——— larve of, (13) 333: 
—— male, (13) 202. 
—— male, reproductive organs of, (13) 
198. 
—— migration and reproduction of, (8) 
354; (13) 206. 
—-— migrations of, (8) 354. 
— — oil-globules in intraovarian eggs of, 
(16) 98. 
—— pathological changes in, (12) 295. 
problems remaining to be solved, 
(13) 218. 
——- reproduction of, (13) 14, 192. 
—— ripe eggs of, in June, (4) 212. 
—— spawning period of, (4) 253. 
—— young of, (3) 63; (13) 2138. 
—— -pout. See Burbot. 
Fel, conger. See Conger eel. 
Iftect of hooks of liners on fish-food, (12) 
19. 
Egeon fasciatus, (16) 156, 157, 209. 
Eggs of fishes, absorption of water in 
maturation of, (16) 116. 
—— —— absorption of yolk in, (16) 2f1. 
—— —— artificial hatching of, (7) 403. 
—— —— attached to zoophytes, (3) 69. 
—_—- —— change in specific gravity of, 
at maturity, (16) 115. 
—-— —— change in volume in demersal, 
during maturation, (16) 141. 
—— —— change in volume in pelagic, 
during maturation, (16) 141. 
changes in constituents of, 
during maturation, (16) 146. 
—— —— changes in percentage of water 
in, during maturation, (16) 143. 
—— —— changes in specific gravity of 
pelagic, during maturation, (16) 142. 
—— —— character of yolk in demersal, 
(16) 132. 
—— —w— characters of embryo from 
demersal and pelagic, (16) 90. 
—— —— characters of protoplasm of, 
(16) 136. 
——- —— chemical composition of ger- 
minal vesicle, (16) 137. 
—— —— chemical composition of yolk 
of, (16) 136. 
—— —— chemical composition of vitel- 
line membrane, (16) 137. 
collected by ‘‘ Garland,” (10) 
300, &e. 
~ — —— comparison of those of herring 
and sprat, (6) 304. 
—— —— comparison of yolk in demersal 
and pelagic, of teleosteans, (16) 89, 
—— —— demersal, modes of attachment 
of, (16) 93. 
—— —— development of, in ovaries, (12) 
386. 
—— —— different character of yolk in 
demersal and pelagic, (16) 98, 99. 
