730 



INDEX 



Ayonus, 700 : A. catophractus, 700 



A ;/ summits, 696 



Ann'"/'"*, G95 



, 1 l<Ja, 639 



, I II i<i, 588 ; air-bladder, 302 



-1 iliichthys, 5S8 



A ipichthys, 6'W 



Air-bladder, as au accessory respiratory 

 organ, 291 f.; Amia, 291 ; Lepitttufi'ii*; 

 291, 299 ; Sudis gigas, 291 ; Eryth- 

 riiii/s taeniatus and E. braziliensis, 291 ; 

 Neoceratodus, 291, 300 ; Protoptems, 

 291, 301, 302 ; Lepidosiren, 291 ; struc- 

 ture, 297 ; in different Fishes, 298 ; 

 "red bodies," 307 ; "red glands," 307, 

 308, 309 ; gases of the air-bladder, 309 ; 

 functions, 309 ; in locomotion, 310 ; as 

 a vocal organ, 358 ; connexion with the 

 auditory organ, 388, 389, 390 



Albuhi, 548, 541, 549; vestigial conus 

 arteriosus, 329, 548 ; A. conorhynchus, 

 548 ; larva, 548 



Albulidae, 547, 544 



Alburnus, 582; A. lucidiis, 167, 583 



Alcock, 695 



Alder and Hancock, 38 



Alepidosauridae, 614, 606 



Alepidosaurus, 614'. A.ferox, 614 



Alepocephalidae, 5U9, 544 



AlepocepJialits, 570 ; A. rostratus, 570 n. 



Aleposomus, 570 



Alestes, 575 



Alimentary canal, of Hemichordata, 11, 

 25 ; of Tunicata, 54, 67 ; of Amphioxus, 

 120 ; of Fishes, 252 f. : regions, 252 ; 

 mesenteries, 258 ; histology, 259 f. ; 

 glands, 270 



AUabenchelys, 5S8 



Allis Shad, 564 



Allman, 22 n., 705 n. 



Alopecias vulpes,45l, 452 ; spiral valve, 265 



Aluteres, 724 



Amaroucium, b'S ; A. proliferum, stomach, 

 88 



Ambassinae, 660 



A/nlassis, 660 



Ambloplites, 657 



Amblyapistus, 695 



Amblyopsidae, 618, 361, 395, 606 



Amblyopsis, 618; A. spelaea, 166, 361, 

 618, 619 



Amblyopus, 689 



A mblypharyngodon, 582 



Ainblijpterus, 487 



Amia, 499, 149, 160, 262, 273, 274, 276, 

 283, 291, 393, 609 n. ; fossil, 501 ; A. 

 cah-a, 499, 500 ; scales, 189 ; vertebral 

 column, 201, 202, 203 ; skull, 228 ; 

 median fins, 235 ; pectoral fin, 243, 

 244 ; spiral valve, 268 ; pseudobranch, 

 284 ; air-bladder, 297, 299, 310 ; heart, 

 328 ; arteries to air-bladder, 337 ; sen- 



sory canal, 385 ; nephrostomes, 401, 

 402 ; segmentation of ova, 409 ; distri- 

 bution and habits, 499 ; spawning, 500 ; 

 nest, 500, 501 ; larvae, 501 



Amiidae, 499, 299, 497 



Amiopsis, 501 



Amiunis, 5S8, 261 ; liver and pancreas, 

 273 ; A. catus, rectal valve, 254 ; renal 

 portal system, 319 ; A. nebulosus, 587 

 n., 592 ; A. nigrilabris, blind, 394 



Ammocoetes, 428, 46, 262, 272, 280, 

 280 u., 327, 343, 428 ; metamorphosis, 

 429 ; protective value of the skin, 429 



Ammocrypta, 659 



Ammodytes, 639, 275 ; A. lanceolatus, 

 639 ; A. tobianus, 639 



Ammodytidae, 639, 637 



AuiiiKipJeurops, 687 



A niiiintretis, 687 



Amniota, 145 



Ampheristus, 695 



Amphioxus, 112 f., A, 37, 46, 110 ; general 

 characters, 113 ; external characters 

 114 ; anatomy, 116, 117 ; musculature 

 117 ; skeleton, 119 ; notochord, 119 

 alimentary canal, 120 ; branchial bars 

 122 ; endostyle, 123 ; coeloni, 123 

 vascular system, 124, 125 ; renal organs, 

 125, 127 ; nervous system, 127 ; sense- 

 organs, 128 ; gonads, 129 ; embryology 

 and life-history, 130, 130, 131, 132, 

 133, 134, 135, 136 ; compared with 

 Hemichordata, 11 f., 16, 29 f. see also 

 Bra nch iostoma 



Amphipnoidae, 598 



Amphipnous, 598 ; respiratory air-sacs of, 

 598 ; A. cuchia, 294, 598 



Amphiprion, 672 



Amphisile, 633 ; A. strigata, 633 



Amphisiliclae, 633, 628 



Amphistiidae, 684, 683 



Amphistium, 684 ; A. paradoxum, 684 



Amphistylic, 222, 223 



Anabantidae, 645, 292, 637 ; distribution 

 of, 645 



Annbas, 645, 355 ; A. scandens, 645 ; 

 labyrinthiform organ, 293 



Anableps, 616, 419; intromittent organ, 

 414 ; development of embryos in ovi- 

 sacs, 418 ; A. tetrophthalmus, 617 



Anacanthini, 646 f., 543, 702, 703 



Anacyrtus, 575 



Anadromous, 413 



Anallantoidea, 145 



Anamniota, 145 



A nampses, 673 



Anapterus, 611 



Anarrhichas, 709; teeth, 251 ; A. lupus, 

 710 ; eggs, 408 



Anaspida, 531, f., 149 



Anchinia, 96, 100 ; A. rubra, 100 ; poly- 

 morphism, 100 



