294 



INDEX 



Marsipobranchs, v. Cyclostomes ; 

 tables of the early development of, 

 280, 281. 



McClure, 182. 



Mechanical adaptation of the fish's 

 form, 5, 6. 



Median tins, v. Fins. 



Megalurus^ 165; M. elegantissimus, 

 165 (Fig. 171). 



MegapterUy v. Whale; M. longimana, 

 numerical lines of, 5 (Fig. 7), 61. 



Afenaspis, skin defences of, 113. 



Menhaden, v. Brevootia. 



Metamerism, vertebrate, of fishes, 14- 

 16; of lampreys, 15; of sharks, 16. 



Miall, L., 126. 



Microdon, 157; AI. wagneri, 158 

 (Fig. 163). 



Mivart, St. G., 40 



Modern fishes, v. Teleostomes. 



MoUier, S., 39. 



Monk-fish, v. Rhina. 



Mo r my r us, 171, 172; M. oxyrhynchus, 

 172 (Fig. 179). 



Morphology, Journal of, quoted, 51 

 note. 



Mouth of fishes, v. Jaws, Teeth, etc. ; 

 of catfish (a Teleostome), 64 note. 



Movement in water, i, 2 (Figs. I and 

 2). 



Mucous canal system, v. Lateral line. 



Miiller, Johannes, 145. 



Mullet, gills of, 20. 



Ahcricna, 173. 



Myliobatis, v. Eagle-ray. 



Afylostomids, in classification, 8; trunk 

 of, 136; jaws of Mylostoma varia- 

 bilis, 136, 137 (Fig. 138). 



MyriacantJnis, in classification, 8 ; 

 restoration of, 104; head region of, 

 105 (Fig. 106) ; dermal plates of 

 head and snout, 105 (Figs, 106, 

 A and B), 113; mandibular, 106 

 (Fig. 107); dorsal spine, 107 (Fig. 

 114); dental evolution, 112; sha- 

 green tubercles and dermal bones 

 and plates, 105 (Fig. 106), 107 

 (Fig. 114), 113. 



Myxine, classification, 8; gills of, 17 

 (Fig. 10), 18; general description, 

 of AI. glutinosa, 59, 60 (Fig. 71), 

 61 (Fig. 72 i5); eggs of, 180-182 

 (Fig. 187); genital system, tables 

 of, 266; excretory system and urino- 

 genital ducts, 270. 



Myxinoid, Californian, gills of, 18; 

 teeth of, 57; eggs of, 182 (Figs. 186 

 A and 187 A) ; comparison tables 

 of the early development, 280, 281. 



Names, list of authors and their 



works, 231-251. 

 Names, list of derivations of, 227-230. 

 Nares, in Dipnoans, 129. 

 Natterer, J., 125. 

 Necturus, swim-bladder of, 21. 

 Nervous system, central, 272 (Figs. 



339-341)1 273 (Figs. 342-344), 



274, 275. 

 Newberry, J. W., 78, 106, 120, 130, 



131, 132, 136. 

 Newton, 106. 

 Nicholson, H. A., 125. 

 Notacanthus sexspinis, 168 (Fig. 174). 

 Notidanus, antiquity of, 9; gill slits, 



16, 19; pectoral fin, 40-42 (Fig. 



52), 44, 45; described, 87-89 (Fig. 



93); affinities, 96; skull, jaws, and 



branchial arches of, 254 (Fig. 



31 0; 

 Numerical lines of fishes, 5, 6 (Figs. 

 5-8). 



Onychodiis, in classification, 8. 

 Operculum of Teleosts, 19 ; comparison 



tables of, 260. 

 Ophiditim, barbels of, 46, 47 (Fig. 



55)- 

 Opisthure, iii. 



Osteolepis, in classification, 8; descrip- 

 tion of, 150, 151 (Fig. 152). 



OsTRACODERMS, classified, 8; antiquity 

 of, 9; description of, 65-71 ; types 

 of, 67; affinities of, 66 (Fig. 77), 

 70; list of authors and works on 

 Ostracoderms, 238. 



