180 
Aphoristia ornata, (18) 359. 
Aphrodite aculeata, (15) 160. 
—-- sp., (6) 230. 
Aphya pellucida, spawning period of, (4) 
245. 
Apionichthys, (18) 358. 
Aplysia punctuta, (15) 116. 
Aporrhais pes-pelicani, (15) 118. 
Apstein, Dr, (17) 100. 
Arachnactis, sp., (15) 307, 308, 310. 
Arca pectunculoides, (20), 449. 
Archer, Mr Walter, (12) 294, 297. 
Arcturella dilatata, (19) 236, 271; (20) 
497 ; (23) 151. 
Arcturus gracilis, (6) 252. 
-—— intermedia, (6) 252. 
—— longicornis, (6) 252. 
Area of closed waters in Firth of Forth 
and St. Andrews Bay, (14) 130. 
Arenicola. See Lobworm. 
Argentina silus. See Smelt, greater 
silver. 
Argentina sphyrena. 
silver. 
Argillecia cylindrica, (7) 319 ; (15) 142. 
Argina pescata, (7) 341. 
Argissa hamatipes, (11) 213, 214; (16) 
170, 177, 210 ; (17) 265 ; (18) 401 ; (19) 
259 ; (20) 513, 516, 527. 
—— typica, (11) 213. 
Argulus foliaceus, (18) 179. 
Armed bullhead or pogge (A gonus cataph- 
ractus), (4) 282 ; (9) 310; (15) 110; (18) 
276; (21) 74; (23) 157. 
—— age when first mature, (21) 77. 
——— eggs of, (3) 60. 
—— distribution of, (21) 74. 
— — distribution of adult and immature 
of, (8) 177. 
—— fecundity of, (9) 250. 
—— food of, (20) 486, 492, 
—— growth of, (12) 334 ; (21) 76. 
—— mature and immature, (8) 177. 
—— parasites of, (18) 162 ; (19) 141. 
—— post-larval forms, (7) 308. 
— — proportion of sexes in, (21) 74. 
—— relation of length to weight, (22) 
239. 
—— size at maturity, (10) 238. 
—— spawning of, (7) 197 ; (13) 230; (21) 
74 
See Smelt, lesser 
—— vitality of eggs of, (13) 230. 
Arnoglossus grohmanni, (18) 357. 
laterna. See Scald-fish. 
megastoma. See Megrim. 
Arpacticus nobilis, (21) 130. 
Artificial hatching and rearing of sea-fish. 
See Hatching. 
—— baits, (7) 352. 
Artotrogus boeckii, (6) 242 ; (11) 210. 
—— magiiceps, (4) 154 ; (6) 233, 242, 
—— normani, (6) 232 ; (20) 473. 
—— orbicularis, (15) 154 ; (16) 272 ; (18) 
400. 
—— papillatus, (6) 232, 233, 234, 242; 
(17) 262, 263. 
Ascidia intestinalis, (9) 301. 
—— mentula, (15) 114. 
Ascidicola rosea, (6) 239; (15) 149; (20) 
525. 
Part I11.—Twenty-third Annual Report 
Ascidiella scabra, (15) 114. 
virginea, (15) 114. 
Ascomyzon echinicola, (11) 210. 
—— ornatus, (20) 472. 
—-— simulans, (16) 270. 
Ascroft, Mr R. L., (11) 489. 
Asellopsis hispida, (8) 318. 
Asellus aquaticus, (13), 249; (17) 139, 
167, 168, 186. 
Aspidiscus fasciatus, (10) 258. 
Aspidoecia normani, (16) 279 ; (17) 268 ; 
(20) 480; (22) 254. 
Aspidophryxus peltatus, (15) 169; (18) 
403 
Astacilla, sp., (20) 497. 
—— gracilis, (6) 252. 
intermedia, (6) 252; (19), 271. 
—— longicornis, (6) 252; (15) 136. 
Astacus gammarus, (15) 131. 
Astarte compressa, (15) 125. 
-—— elliptica, (15) 125. 
—— sulcata, (15) 125. 
—— triangularis, (15) 125. 
Asterias glacialis, (15) 161. 
—— murray?t, (15) 161; (20) 111, 319, 324. 
—— rubens, (15) 161; (20) 311, 319, 326. 
—_— —-— spawning period of, (4) 216. 
var. attenuata, (20) 311, 319, 
324. 
Asterionella formosa, (9), 274, 282. 
Asterocheres echinicola, (16) 270; (18) 
399. 
——- lilljeborgi, (16) 270. 
—— violaceus, (16) 270; (20) 472. 
Asteromphalus atlanticus, (15) 297. 
—— heptactis, (15) 297, 298. 
—— ralfsianum, (15) 297. 
Asterope marie, (8) 825 ; (15) 145 ; (20) 
497, 511, 517. 
—— teres, (5) 328 ; (15) 145. 
Astronyx lovent, (20) 318, 319. 
Astropecten irregularis, (20) 307, 319, 
324. 
—— limicola, (7) 113 ; (15) 165. 
Astrorhiza arenaria, (19) 236, 257. 
Atelecyclus heterodon, (6) 257. 
-—— septemdentatus, (6) 257 ; (19) 279. 
Athelges pagurt, (6) 251; (15) 136. 
Atheresthes stomias, (18) 352. 
Atherina hepsetus, eggs of, (9) 419. 
—— fishery for, in France, (9) 419. 
—— presbyter. See Smelt, sand. 
Atlantic water in North Sea, (12) 352. 
Attheyella crassa, (12) 286, 288 ; (13) 188, 
244, 249; (14) 168, 239 ; (15) 320, 332; 
(16) 252, 260 ; (17) 140, 145, 148. 
—— cryptorum, (11) 225, 227, 228, 229, 
236. 
—— cuspidatum, (16) 260. 
——— duthiei, (14) 239, 241 ; (17) 159, 164, 
183, 189. 
—— macandrewe, (13) 249, 253; (14) 
168, 169. 
—— propinqua, (11) 227, 236. 
pygmea, (12) 286; (13) 188, 244, 
249 ; (14) 168, 239 ; (15) 330, 331, 332 ; 
(16) 252, 260 ; (17) 140, 145, 150. 
spinosa, (9) 272, 276 ; (11) 225, 227, 
229, 236. 
—— zschokket, (13) 188, 244, 249; (14) 
