750 



INDEX 



Pelvic girdle, 239 f., 240, 241 

 Pempheridae, 656, 653 

 Pempheris, 657 ; P. muelleri, 657 

 Penetopterysc, 634, 635 



PentaceropsLf, ':<! 



PentacprM, <i<i 



Peutacerotinae, 660 



Pentanemus, 64! : P. quinquarius, 162 



Pentapus, 664 



Pentaroge, 695 



Peprilus, 643 



Perca, 659, 262 ; alimentary canal, 275 ; 

 veins, 323 ; thyroid, y43 ; auditory 

 organ, 388 ; P. fluvuitilis, 659, 321, 

 323 



Percolates, 659 



Percarina, 659 



Percesoces, 636 f. 



Perch, 659 ; deposition of eggs, 411 ; = 

 Perca, q.v. 



Percichthys, 659, 660 



Percidae, 658, 654, 412 ; coloration, 166 



Perciformes, 652 f., 651 



Percilia, 659 



Percina, 659 



Percophiidae, 705, 703 



Percophis, 705 ; P. brasilianus, pectoral 

 arch of, 703 



Percopsidae, 620, 606 



Percopsis, (J..' I 



Peribranchial budding, 82 



Peribranchial cavity, 43, 44, 59, 63 ; of 

 Thaliacea, 95, 101 



Pericardium, of Hemichordatu, 15 ; of 

 Tunicata, 44, 49 ; of Fishes, 327 



Perihaemal spaces, 9 



Periophthal 'MUS, (ISO, 690, 355 ; eyes, 

 155 ; pectoral iins, 161 ; tail as a re- 

 spiratory organ, 289 ; P. kodteuteri, 

 690 11. 



Peripharyngeal bands, 45, 46, 52, 53 



Peripharyngeal spaces, 9 



1'i'i-ixtnlion, 701 



Peron. 36 



Perophora, 72, 84 ; P. listen, 72 



Petalodoutidae, 446 



Petalodus, 44^ 



Petalopteryx, 4^8 



Petersen, 690 n. 



Petersius, 575 



Petrocephalus, 551 



Petromyzon, 426, 147, 258, 367, 382 ; 

 external characters, 150 ; skull, 217 ; 

 teeth, 247, 248 ; spiral valve, 264 ; 

 liver, 272; pancreas, 273; gill-saes, 

 279, 280 ; heart, 327 ; arteries, 329, 

 330 ; blood corpuscles, 341 ; thyroid, 

 343, 344 ; supra - renal bodies, 346 ; 

 brain, 371, 372, 392 ; spinal nerves, 378 ; 

 auditory organ, 387 ; olfactory organ, 

 391, 392; naso - pituitary involution, 

 381 ; pituitary caecum, 392 ; parietal 



eye, 395, 396 ; kidneys, gonads, and 

 genital pores, 399, 400* 403 ; distribu- 

 tion, 426 ; P. flumatilis, 426 ; P. 

 ninri)ius, 426 ; J'. jilnin'ri, ova, 428 ; 

 P. wilderi, spawning, 427 ; larva. Ain- 

 mocoetes stage, 428 



Petromyzontes, 4~& f. 



Petromyzontidae, .'/.'6 



Pctroscirtes, 709 



Phago, 57<i 



Phcillusia, 72 



Phaneropleuron, 506, 519 ; P. andersoni, 

 506 



Phanerosteon, 487 



Pharyngeal teeth, 251 



Pharyngodictyon, S7 ; P. mirabile, 80 



Pharyngognathi, 543 



Pharyngopneusta, 30 n. 



Phisalix, 705 n. 



J'/t/i/ctaenaspis, 536 



Pholedic/i t/i i/x, 7 <>',> 



Pholididae, 711, 704 



Pholidophoridae, 545, 541 n., 544 



Pholidophoms, 545 



Plmllx, 711, 712 ; P. <IIIHIK-UIIX, 712, 

 415 



Phoronidea, :!"! f., 5 



Phoronis, 27 f., 5 ; regeneration, 16, 30 ; 

 P. buskii, 28 



Pliorozooid, 99, 100 



Phosphorescent organs, 178 



Photichthys, 571, 570 



PhotoWepharon, 660 



PJwtonectes, 571 



Photophores, 178, 612, 613. 624, 711 



Photostomias, 571 



Phractolaemidae, 560, 544 



Phractolaemns ansorgii, 560, 560 



P/ii-tirfti,-<i, 588 



Phthinobranchii, 629 



Phycis, 648 



Pliyllodoce, nephridium, 127 



Phyllodus, 674 



Phyttopteryx, 634 \ f- eques, 635 



Phylogephyra, 565 



Physailia, 588 



Physalia, with JYomeus, 643 



Pli i/xiculus, 648 



Physoclisti, 306, 307, 311 



Physopyxis, 588 



Physostomi, 543, 306, 311 



Piabucina, 575 ; P. argentina, mouth, 



577 



Pike, 609, 250, 307 

 Pike- Perch, 659 

 Pilchard, 564, 389 

 Pilot-Fish, 677 

 Pimelepterus, 657 

 Pimelodina, 588 

 Pimelodus, 5S8, 589, 361 

 PimepJwtles, 582 

 Pipe-Fish, 634, 154 



