396
SUBJECT INDEX
Ceriops thicket zone, 103, 104, 118,
134, 218
Chaetognaths
animals of, 174
accessory fertilization cells in, 297300, 301, 302, 304,305, 307, 335
affinities of, 355-357, 359-363
as fishing indicators, 344
as isolated phylum, 357
biology of, 271-366
bristles of, 275
caudal segment, 279, 290
characters with systematic or adaptational value, 272
crescent cells, 296
cross-fertilization, 332
cycles of sexual maturity in, 344,
diploid number of, 309
early development phases of, 316,
embryology of, 356
feeding movements of, 276
female gonads of, 292-297, 300-309
fertilization of, 322-334
growth of, 346
hermaphrodite nature of, 289, 330
hooks of, 274
influence of environmental factors
integument of, 274
laboratory experiments on, 364-365
life span of, 345
longitudinal septum, 290
male gonads of, 290-291, 309
mating of, 322
morphology of, 271-289
muscles of, 361-362
new classification of, 280
oogenesis in, 311
origin of, 358
possibility of self-fertilization in,
322, 328
regeneration in, 351-355
regions of body, 272
reproduction of, 289-350, 365
spermatogenesis in, 309-31 1
spermatogonia, 290
spermatophores, 323, 324, 325, 326,
345-350
317
on, 343-344, 365
327, 329, 330, 333
Chaetognaths-continued
spermatozoa, 294, 298, 306, 308,
310, 311, 324, 327, 328
migration of, 326, 328
survival of winter by, 350
suspension apparatus in, 297, 298,
systematics of, 280, 355, 358-359,
299
363-364
Channels, in mangal, 133
Charcoal production, from mangrove,
Chelipeds, of Uca, 202
Chemotactic action, 328
Cheniers, 79, 80, 134, 136
Chlorinity, 21 1
235, 236
optimum range for Sagitta crassa,
349
Chromosomes, 309, 310, 338
lampbrush, 301, 312
precocious migration of, 310
Ciliary loop, see Corona ciliata
Clines, 152
Closed areas, for fishing, 26, 27
Closed seasons, for fishing, 26, 27
Coastal sediments, 82
accretion of, 83, 149, 150, 238
influence of mangroves on, 83
Coconut groves, 240
Cod, 3, 10, 28, 55
landings of arctic, 11
stocks of, 19
Coelom cavity, 290, 296, 300, 352
“Collarette”, 275, 348, 352
Conservation measures, 41, 43
for whales, 55
international control of, 42 43
problems of feasibility and enforceConvention on Fishing and Conservation of the Living Resources of
the High Seas, 38, 45
Convention for the Regulation of
Whaling, 43
Coral reefs, 77, 79, 110
Cormorants, 153
Corona ciliata, 279, 281, 282, 283, 284,
ment, 42
285, 286, 300, 327, 360, 36h
annular canal of, 283
cells of, 283, 288
SUBJECT INDEX
Ceriops thicket zone, 103, 104, 118,
134, 218
Chaetognaths
animals of, 174
accessory fertilization cells in, 297300, 301, 302, 304,305, 307, 335
affinities of, 355-357, 359-363
as fishing indicators, 344
as isolated phylum, 357
biology of, 271-366
bristles of, 275
caudal segment, 279, 290
characters with systematic or adaptational value, 272
crescent cells, 296
cross-fertilization, 332
cycles of sexual maturity in, 344,
diploid number of, 309
early development phases of, 316,
embryology of, 356
feeding movements of, 276
female gonads of, 292-297, 300-309
fertilization of, 322-334
growth of, 346
hermaphrodite nature of, 289, 330
hooks of, 274
influence of environmental factors
integument of, 274
laboratory experiments on, 364-365
life span of, 345
longitudinal septum, 290
male gonads of, 290-291, 309
mating of, 322
morphology of, 271-289
muscles of, 361-362
new classification of, 280
oogenesis in, 311
origin of, 358
possibility of self-fertilization in,
322, 328
regeneration in, 351-355
regions of body, 272
reproduction of, 289-350, 365
spermatogenesis in, 309-31 1
spermatogonia, 290
spermatophores, 323, 324, 325, 326,
345-350
317
on, 343-344, 365
327, 329, 330, 333
Chaetognaths-continued
spermatozoa, 294, 298, 306, 308,
310, 311, 324, 327, 328
migration of, 326, 328
survival of winter by, 350
suspension apparatus in, 297, 298,
systematics of, 280, 355, 358-359,
299
363-364
Channels, in mangal, 133
Charcoal production, from mangrove,
Chelipeds, of Uca, 202
Chemotactic action, 328
Cheniers, 79, 80, 134, 136
Chlorinity, 21 1
235, 236
optimum range for Sagitta crassa,
349
Chromosomes, 309, 310, 338
lampbrush, 301, 312
precocious migration of, 310
Ciliary loop, see Corona ciliata
Clines, 152
Closed areas, for fishing, 26, 27
Closed seasons, for fishing, 26, 27
Coastal sediments, 82
accretion of, 83, 149, 150, 238
influence of mangroves on, 83
Coconut groves, 240
Cod, 3, 10, 28, 55
landings of arctic, 11
stocks of, 19
Coelom cavity, 290, 296, 300, 352
“Collarette”, 275, 348, 352
Conservation measures, 41, 43
for whales, 55
international control of, 42 43
problems of feasibility and enforceConvention on Fishing and Conservation of the Living Resources of
the High Seas, 38, 45
Convention for the Regulation of
Whaling, 43
Coral reefs, 77, 79, 110
Cormorants, 153
Corona ciliata, 279, 281, 282, 283, 284,
ment, 42
285, 286, 300, 327, 360, 36h
annular canal of, 283
cells of, 283, 288