454 



INDEX 



Perilymph, 192 



Fcriophthahnus, sec Mud-skipper 



Peristedion, see Sea Robin 



Pcscados blancos, 268 



Petcrfisch, 432 



Pelromyzon, sec Lamprey 



Phallostethinac, 296 



Pharyngeal openings, 34, 36, 38 



Pharyngeals, 128, 129, 138 



Pharynx, 34, 168; o^ Ammocoetes, 331 



Phinock, 366, 370 



Pholidophoridac, 362, 377 



Pholis, see Gunnel 



Phosphorus, in flesh, 382 



Photocorynus spiniceps, 315 



Photonectes inter medius, 198 



Photophorcs, 151 f. 



Phoxinus, see Minnow 



Phyllopteryx, see Sea Dragon 



Phylogenetic tree, 341, 363 f. 



Phylogeny, 341 



Pickling, 396 



Picuda, attacking man, 132 f. 



Pigment cell, see chromatophore 



Pike, speed, 29; gill-rakers, 42; 

 dorsal and anal fins, 67; skull, 

 107; praemaxillary, 108; teeth, 

 128; feeding, 129; size of brain, 

 180; distribution, 276; systematic 

 position, 377; as food, 384; 

 longevity, 425 f. 



Pilchard, scales, 91, 99; "hybrid" 

 with Herring, 99; distribution, 

 255, 259; migrations, 262 f. ; eggs, 

 322 ; fishery, 393 



Pilot-fish, 71, 243^; association with 

 Sharks, 245 



Pine-cone Fish, 95; dorsal fin, 68; 

 pelvic fin, 81 ; scales, 97 



Pineal gland, 179, 190 



Pipe-fish, 73; locomotion, 27; gills, 

 40; bony rings, 97 ; mouth, feeding, 

 115 f. ; colours, mimicry, 215; 

 egg-pouch, 313 f. ; systematic 

 position, 378 



Piranha, see Caribe 



Pirarucu, see Arapaima 



Pirate Perch, 378 



Piraya, see Caribe 



Pisces, see Bony Fish 



Pisciculture, 408 f. 



Pituitary gland, 179 



Placenta, 325 f. 



Placoderm, 348 f., 373 



Placoid scale, see dermal denticle 



Plaice, scales, 91 ; mouth, 118; teeth, 

 food, 134; palatability, 167; noc- 

 turnal activity, 204 f. ; colour 

 changes, 220 f. ; ambicoloration, 

 228; hibernation, 244; spawning, 

 280 f., 282; eggs, 282, 322; races, 

 368; depletion of stocks, 403 f. ; 

 transplantation, 404 



Plankton-feeders, 135 



Plasma, 40 



Platax, see Bat-fish 



Platichthys, see Diamond Flounder 



Platycephalidae, 379; see also Flat- 

 head 



Platysomidae, 354 



Platystacus, care of eggs, 310 



Plecostomus, see Mailed Cat-fish 



Plectognathi, teeth, food, 137; sys- 

 tematic position, 379 



Pleuracanthus, 352; pectoral fin, 59 



Pleural ribs, 164 



Pleuronectes, see Plaice 



Pleuronectoidea, 379 



Pleuropterygii, 351, 373 



Pleurotremata, 373 



Pliotrema, see Saw Shark 



Plotosidae, 271 



Pneumatic duct, 49 



Poeciliinae, 296 



Pogge, 95; shields, 96 



Pogonias, see Sciaenid 



Poison-fish, 141; dorsal fin, 69; 

 poison gland, 142; mimicry, 216; 

 systematic position, 379 



Poison glands, 140 f. 



Poisonous fishes, 144 f. 



Poison Toad-fish, 142 



Polistotrema, see Californian Hag-fish 



Pollack, dorsal fins, 66; sense of 

 smell, 184 



Pollan, 268 



Pollution, 286, 413 



Polynemus, see Thread Fin 



Polyodon, see Paddle-fish, Spoon-bill 



Polypterus, see Bichir 



Pomacentrid, associating with anem- 

 one, 246; see also Damsel-fish 



Pomatomus, see Blue-fish 



Pompilus, 245 



Pop-eye Gold-fish, 420 



Porbeagle, 374 



