INDEX TO APPENDICES. 
8 f J7 
7. PARASITE OF T 
Page. 
Anatomy 546-553 
Circular muscles 550 
Cuticle 546-548 
Description of the species, emendations . . .544-546 
Emendation of original description 545, 546 
Genitalia 552-553 
Habitat and distribution 543-544 
Inner core of the strobile 550 
8. THE CENTRAECHID2E, Of 
Acantharchus, analysis of species 563 
Acantbarcbus pomotis 563 
Ambloplites, analysis of species 561 
Ambloplites rupestris 561 
rupestris cavifrons 561 
Arcboplites, analysis of species 560 
Archoplifes interruptus 560 
Centrarchidae, analysis of genera \ 558 
Centrarchus, analysis of species 558 
Centrarchus macropterus 558, 559 
Cbsenobryttus, analysis of species 562 
Chaenobryttus gulosus 562,563 
Enneacantbus, analysis of species 563, 564 
Enneacantbus eriarchus 564, 565 
gloriosus 564 
obesus 563.564 
Lepomis, analysis of 565-569 
Lepomis albulus 569, 575 
auritus 568, 573, 574 
cyanellus 566, 569, 570 
E TIGER SHARK. 
Page. 
Longitudinal muscles - 548-550 
Method of study 546 
Musculature 548 
Nervous system 551-552 
Plates, explanation of 554-550 
Subcuticular granulo-fibrous layer 550 
Varieties 545 
Water vascular system : 550-551 
FRESH- WATER SUNFISHES. 
Lepomis garmani • 568. 574 
gibbosus 569. 576 
beros 569, 575. 576 
holbrooki 569, 576 
bumilis 567. 571 
ischyrus 566, 570, 571 
megalotis 567, 572, 573 
macrochirus 567, 572 
pallidus 568, 574, 575 
punctatus 568,574 
symmetricus 566. 571 
Mesogonistius, analysis of species 565 
Mesogonistius ebsetodon 565 
Micropterus, analysis of species 577 
Micropterus dolomieu 577 
salmoides 577. 578 
Pomoxis, analysis of species 559 
Pomoxis annularis 559. 560 
sparoides 559 
Summary 579 
9. APODAL FISHES, OR EELS. 
Ahlia 638, 639 
Ahlia, analysis of species 639 
Ablia egmontis 639 
Analysis of families 583, 584 
Anguilla 666-669 
Anguilla, analyses of American and Euro- 
pean species 667 
Anguilla anguilla 667-668 
chrysypa .667, 668, 669 
Anguillidae . . 584, 666-669 
Anguillidae, analyses of genera 666 
Apodes, classification ol 582 
Avocettina 653, 655 
Avocettina, analysis of species 655 
Avocettina infans 655 
riebardi 655 
Bascanichthys 613,621,622 
Bascanicbthys, analysis of species 621 
Bascanichthys bascanium 621, 622 
scuticaris.. 621 
Brachysomopbis . 613, 636, 637 
Bracbysomophis, analysis of species 636 
Bracbysomophis crocodilinus 636, 637 
Caecula 613, 622 
Caecula, analysis of European species 622 
Caecula imberbis 622 
Callechely s ..... .' . . 613, 620 
Callechelys, analysis of American species . . 620 
Calleeh ely s muraena 620 
Channomuraena 585, 587 
H. Mis. 274 
Channomuraena, analysis of American spe- 
cies 587 
Channomuraena vittata 587 
Chilorhinus 638, 639 
Chilorbinus, analysis of species 639 
Chilorhinus suensonii 639 
Cblopsis 650, 651 
Chlopsis, analysis of species 650 
Cblopsis bicolor 650 
equatorialis 650,651 
Congridae 584, 65S-666 
Congridae, analysis of genera 658, 659 
Cyema 653,654 
Cyema, analysis of species 654 
Cyema atrum 654 
Echidna 586, 611. 612 
Echidna, analysis of American species 6 LI, 
Echidna catenata .611 , 612 
nocturna 611, 612 
Eclielidae 583, 638-643 
Ecbelidae, analysis of American and Euro- 
pean genera 638 
Echelus 638, 642, 643 
Echelus, analysis of species 642 
Echelus myrus 642,643 
pacliyrhynchus 642 
Eels, classification of 582 
Eucbelycore 585. 587, 588 
Enclielycore, analysis of species 588 
Enchelycore nigricans 588 
57 
