694 



INDEX 



Hydrolagus colliei, 88, 179, 666 

 Hydromedusae, feeding, 236 

 Hydrophiidae, 288 



submergence-time, 170 

 hydrostatic pressures, 94 

 5-hydroxytryptamine, 255, 381, 393, 441 

 Hymeniacidon perleve, 472 

 Hymenocephalus striatissimus, 559, 575 

 Hvperia, 513 

 H.galba, 513, 584 

 hyperiid amphipods, commensalism, 513, 



584, 587 

 Hyperoodon rostratus, 170 

 hypobranchial gland, 113, 664 

 hypoxanthine, 294 

 Hypsypops rubicunda, 491 



ichthylepidin, 635 



Ichthyotomus sanguinarius, 247, 255, 595 



Idiacanthus fasciola, 556 



Idotea, 149, 235, 513 



/. baltica, 513, 514 



Idus melanotus, 161 



immunity reactions, 610 



Inachus, 228, 583, 603 



/. mauritanicus, 604 



indigoid pigments, 481 



inheritance of colours, 491 



inhibitory fibres, 388 



Inimicus japonicus, 495 



ink sac, cephalopods, 482 



inner ear, fish, 341 



inquilinism, 583, 590 



instinctive behaviour, 456 



integrative functions of nervous system, 



447 

 intermedine, 519, 526 

 intertidal zone, 2 

 intracellular digestion, 260 

 intracellular luminescence, 547 

 iodopsin, 330 

 ionic composition, 28 

 ionic effects, heart, 119 

 iridescence, 484 

 Irido gorgia, 484 

 iridocytes. See iridophores 

 iridophores, 484, 505, 523 

 iris, 312, 314, 317 

 iron, in blood, 181 

 irrigation, sponges, 206 

 Isancistrum, 593 

 Isognomon, 648 

 isopods — 



excretion, 292 



feeding, 239 



parasitism, 598 

 isosmotic solutions, 675 



Jack-fish. See Trachwus 

 Janolus cristatus, 482, 483 

 Jasus, 352 



jellyfish, nervous system, 426 

 Jorgensen, C. B., 229 



John Dory. See Zeus. 

 junctional transmission, 438 



Kaloplocamus ramosum, 546 

 kidney — 



Crustacea, 296 



Molgula, 620 



vertebrates, 300 

 killer whale, feeding, 247 



See also Orca 

 killifish. See Fundulus 

 king crab. See Limulus 

 kittiwakes, feeding, 246 

 klinotaxis, 321 

 Krebs cycle, 294 

 krill, 202, 228, 231 



Labidoplax digit a, 588 

 Labrorostratus parasiticus, 596 

 Labrus, 153, 480 

 L. ossifagus, 494 

 labyrinth, 341 

 lactic acid, 171, 392 

 Laevicardium substriatum, 633 

 lagena, 341 

 Lamellibrancha — 



blood, 186 



boring species, 659 



buffering of acid, 191 



carbonic anhydrase, 191 



commensalism, 590 



digestion, 258, 260, 267, 272, 274 



feeding, 211,239, 247 



filtering rates, 229 



gills, 213 



haemoglobin, 179, 185, 186 



kidneys, 298 



larvae, 223 



muscle, 390 



nutrition, 619 



osmotic relations, 38 



skeleton, 646 

 Lampanyctus, 574 

 lamprey — 



anticoagulant, 255 



feeding, 241 



See also Petromyzon 

 lancelets. See Amphioxus 

 Lanice, 656 



L. conchilega, 139, 654 

 Larvacea. See Appendicularia 

 larvae — 



chromatophore patterns, 490, 491 



coloration, 495 



feeding, 223 



luminescence, 540 



settling, 447, 457 

 lateral line of fish, 341 

 Latreutes fucorum, 531 

 Leachia, 575 

 L. cyclura, 550 

 Leander. See Palaemon 

 learning, 458 



