INDEX 735 
Cetengraulis, 563 
Cetomimidae, 674, 606 
Cetomimus, 614 
Cetopsis, 58S, 587 
Cetorhinidae, 453 
Cetorhinus, see Selache 
Chaca, 588 3; C. lophioides, 589 
Chaenichthys, 706 
Chaenobryttus, 657 
Chaenopsis, 709 
Chaerops, 673 
Chaetobranchus, 672 
Chaetodon, G68 
Chaetodontidae, 667, 654, 361 ; coloration, 
166 
Chaetostomus, 595; C. cirrhosus, sexual 
differences, 594; C. gigas, 595 
Chalceus, 575 ; C. angulatus, mouth, 577 
Chalcinus, 575 
Chamisso, 36 
Champsocephalus, 706 
Champsodon, 641; C. vorax, 642 
Chaninae, 563 
Channa, 645 
Channalabes, 588, 589 
Channomuraena, 605 ; C. vittata, 605 
Chanoides, 563 
Chanos, 563, 563; 
helix, 294 
Characidium, 576 
Characinidae, 575, 574, 294 ; distribution, 
576; teeth, 250; sound production, 
361; Weberian ossicles, 389, 573 
Characodon, 616 
Charaz, 665 
Charitosomus, 672 
Charr, 567 
Oharybdia, 685 
Chascanopsetta, 6S7 
Chasmodes, 709 
Chatoessus, 563, 563 
Chauliodontinae, 577 
Chauliodus, 571, 570, 572 
Chaunax, 720 
Cheiracanthus, 442 
Cheirodus, 488 ; C. granulosus, 488 
Cheirolepis, 485, 487 
Chela, 582 
Chelaethiops, 582 
Chelidoperca, 659 
Chelino, G68 
Chelyosoma, 73; C. macleayanum, 72 
Chiaje, Delle, 17 
Chiasmodon, 641, 642 
Chiasmodontidae, 647, 637 
Chilinus, 67.3 
Chilio, 673 
Chilobranchus, 598 
Chilodactylus, G64 
Chilodipterinae, 660 
Chilodipterus, 660 
Chiloglanis, 588 
C. salinoneus,  gill- 
Chilorhinus, GOI 
Chiloscyllium, 446, 447; pectoral girdle, 
239; pectoral fin, 239; pelvic girdle, 
240 ; pelvic fin, 240; brain, 374 
Chimaera, 469, 382; vertebral column, 
199 ; skull, 223; frontal clasper, 223, 
469; gills, 282, 283; lateral sensory 
organs, 386; auditory organ, 387, 388 ; 
distribution, 469; egg-case, 470; seg- 
mentation of egg, 474; fossil, 474; C. 
affinis, 469; C. colliei, 469, 4738; C. 
monstrosa, 469 ; vertebral column, 199 ; 
skull, 223; pectoral fin, 248; spiral 
valve, 267 
Chimaeridae, 468, 474 
Chimaeropsis, 468 
Chimarrhichthys, 705 
Chirocentridae, 567, 544 
Chirocentrites, 561 
Chirocentrodon, 563 
Chirocentrus, 562 ; vestigial spiral valve, 
269 ; C. dorab, skull and pectoral arch, 
562 
Chirodon, 575 
Chirolophius, 718; C. naresii, 718 
Chironemus, 664 
Chirostoma, 639 
Chirothricidae, 675, 606 
Chirothriz, G15 ; C. libanicus, 615 
Chlamydoselachidae, 443 
Chlamydoselachus, 443, 279 ; rectal gland, 
276; branchial clefts, 277; efferent 
branchial vessels, 332 n.: C. anguineus, 
443, 444; C. lawleyi, 443 
Chlamydothorax, 17 n. 
Chlorophthalmus, G11; C. gracilis, 613 
Chloroscombrus, 677 
Chologaster, G18; C. agassizii, 618; C. 
cornutus, 618; C. papilliferus, 618 
Chondrostachys, Sd 
Chondrostei, 485 f., 149 
Chondrosteidae, 489, 486 
Chondrosteus, 489 ; C. acipenseroides, 489, 
490 
Chondrostoma, 582 
Chonerhinus, 726 
Chorda-centra, 196 
Chordata, characters of, 3 f., 35, 38 
Choridactylus, 695, 692 
Chorimycterus, 576 
Chorinemus, 677 
Chorisochismus, 709 
Chorizocormus, 89; C. reticulatus, 90 
Choroid gland, 398, 394 
Chromatophores, 166 
Chromides, 677 
Chrysichthys, 588 
Chrysophrys auratus, 420 
Cichla, 672, 671 
Cichlidae, 670, 654; distribution, 672 ; 
eggs carried in the mouth, 416 
Cichlops, G61 
