SUBJEUT MDEX
453
Testis, 106
Thelycum, 6, 12, 17, 105, 108, 110, 111,
Thermocline, 152, 163, 164, 170
Thiamine, 213
Thoracicleg, 6-8, 10, 11, 13, 16, 17, 19.
370
104, 112, 117, 174-182, 242, 262
cleaning mechanism, 176, 178
comb of, 176, 178
elongated, 22, 26, 198, 199, 225, 240,
endopodite, 6, 7, 112
exopodite, 6, 7, 10, 11, 13, 15, 16,
grasping foot of, 13
larval, 103, 104, 117, 121, 130, 131
parts of, 176
Thorax, 7, 15-18, 179, 186, 244, 258,
Thorium, 202
Tiger flathead, 366
Tin, 202
Tintinnid, 3, 168, 174, 190, 196, 198
Titanium, 201
Torsk, 383
Trabeculum, 258, 259
Transition zone, 82, 318, 340
Travancore coast, 365
Tristan da Cunha, 39
Tropical Convergence, 342
Tropical region, 39, 41, 44, 46, 50, 52,
55, 56, 58, 60, 62, 67, 68, 70, 72,
74, 84, 86, 88, 92, 95, 96, 98, 100,
311, 318, 319, 334, 336, 341, 342
282
112, 176, 177, 179, 180
261, 262, 264, 265-267
Trout, 364, 365, 389
Tsushima Gunto, Japan, 348
Tuna, 387
bluefin, 366
striped, 366
Tunica propria, 186, 187
Tunicate, 382
Tunny, 364
Tyrrhenian Sea, 53, 332, 333
U
Ulladulla, Australia, 128
Uranium, 202
Uropod, 6, 7, 15, 260, 261, 284
larval, 103, 117
v
Variation
body shape, 19, 22, 26, 288
calyptopis, 120, 130
colour, 19
egg, size of, 112, 113
furcilia, size of, 125, 126
geographical form, 19-22
larval development, 104, 121-130
metanauplius, size of, 115
morphological, 19-22, 26
petasma, 4, 12, 20, 22-24, 26
photophore, 22
spermatophore development, 109,
110
Vas deferens, 106-111, 261, 293
Venezuela, 55, 60, 74, 75
Vertical distribution
bathymetric distribution
adults, 39-102, 144, 150-152
larvae, 132-136, 138, 140, 141
bathypelagic species, 50, 52, 124,
142, 144, 190, 240, 311, 318, 324,
325, 336, 341, 344
eggs, 133, 134
epipelagic species, 142, 332, 336, 341,
344
larvae, 132-136, 138, 140,141, 161
mesopelagic species, 41, 46, 48, 77,
82, 84, 92, 98, 102, 142, 144,
150, 240, 31 1, 325,336, 340, 341,
344
size groups, 157-161, 172
Vertical migration, 144-173, 193, 252,
275, 337, 380, 382
of larvae, 132,136-142, 161
of size classes, 157-161, 172
physical factors controlling, 163-167
significance of, 167-173
Victoria, Australia, 366
Viscosity, 163
Vision, 225, 235-241
bifocal, 240
chemistry of, 216, 236-241
image formation, 240, 255, 256
light sensitivity, 238, 256, 257
photopic, 235
scotopic, 236
spectral sensitivity, 229, 238-240,
247, 248, 256, 257
453
Testis, 106
Thelycum, 6, 12, 17, 105, 108, 110, 111,
Thermocline, 152, 163, 164, 170
Thiamine, 213
Thoracicleg, 6-8, 10, 11, 13, 16, 17, 19.
370
104, 112, 117, 174-182, 242, 262
cleaning mechanism, 176, 178
comb of, 176, 178
elongated, 22, 26, 198, 199, 225, 240,
endopodite, 6, 7, 112
exopodite, 6, 7, 10, 11, 13, 15, 16,
grasping foot of, 13
larval, 103, 104, 117, 121, 130, 131
parts of, 176
Thorax, 7, 15-18, 179, 186, 244, 258,
Thorium, 202
Tiger flathead, 366
Tin, 202
Tintinnid, 3, 168, 174, 190, 196, 198
Titanium, 201
Torsk, 383
Trabeculum, 258, 259
Transition zone, 82, 318, 340
Travancore coast, 365
Tristan da Cunha, 39
Tropical Convergence, 342
Tropical region, 39, 41, 44, 46, 50, 52,
55, 56, 58, 60, 62, 67, 68, 70, 72,
74, 84, 86, 88, 92, 95, 96, 98, 100,
311, 318, 319, 334, 336, 341, 342
282
112, 176, 177, 179, 180
261, 262, 264, 265-267
Trout, 364, 365, 389
Tsushima Gunto, Japan, 348
Tuna, 387
bluefin, 366
striped, 366
Tunica propria, 186, 187
Tunicate, 382
Tunny, 364
Tyrrhenian Sea, 53, 332, 333
U
Ulladulla, Australia, 128
Uranium, 202
Uropod, 6, 7, 15, 260, 261, 284
larval, 103, 117
v
Variation
body shape, 19, 22, 26, 288
calyptopis, 120, 130
colour, 19
egg, size of, 112, 113
furcilia, size of, 125, 126
geographical form, 19-22
larval development, 104, 121-130
metanauplius, size of, 115
morphological, 19-22, 26
petasma, 4, 12, 20, 22-24, 26
photophore, 22
spermatophore development, 109,
110
Vas deferens, 106-111, 261, 293
Venezuela, 55, 60, 74, 75
Vertical distribution
bathymetric distribution
adults, 39-102, 144, 150-152
larvae, 132-136, 138, 140, 141
bathypelagic species, 50, 52, 124,
142, 144, 190, 240, 311, 318, 324,
325, 336, 341, 344
eggs, 133, 134
epipelagic species, 142, 332, 336, 341,
344
larvae, 132-136, 138, 140,141, 161
mesopelagic species, 41, 46, 48, 77,
82, 84, 92, 98, 102, 142, 144,
150, 240, 31 1, 325,336, 340, 341,
344
size groups, 157-161, 172
Vertical migration, 144-173, 193, 252,
275, 337, 380, 382
of larvae, 132,136-142, 161
of size classes, 157-161, 172
physical factors controlling, 163-167
significance of, 167-173
Victoria, Australia, 366
Viscosity, 163
Vision, 225, 235-241
bifocal, 240
chemistry of, 216, 236-241
image formation, 240, 255, 256
light sensitivity, 238, 256, 257
photopic, 235
scotopic, 236
spectral sensitivity, 229, 238-240,
247, 248, 256, 257