INDEX 



457 



Sand Eel, pyloric caeca, 169; eggs, 



321 

 Sand Goby, nest, 3 1 1 

 Sand Shark, feeding, 125 f. ; teeth, 



121, 122, 123; systematic position, 



374 



Sand Smelt, passing Suez Canal, 

 258; see also Atherine 



Saprolegnia, 415 



Sardina, distribution, 255, 259; S. 

 neopilchardus, 259; S. pilchardus, 

 259; S. sagax, 259 



Sardine, 399; see also Pilchard 



Sargasso Weed Fish, 215 



Saury, jaws, 1 13 



Saw-fish, 87; rostrum, 87; teeth, 

 126; in fresh water, 253; embryo, 

 327; systematic position, 376 



Saw Shark, gill-clefts, 35 ; systematic 

 position, etc., 353, 376 



Scabbard-fish, eflfects of cold, 243 



Scad, scutes, 94; migrations, 263 



Scald-fish, pelvic fin, 82 ; secondary 

 sexual characters, 300 



Scales, 85 f.; counts, 98, 99; reading, 

 100 f. ; of lateral line, 199 f. ; of 

 sponge-living Goby, 235 ; of hill- 

 stream fishes, 237 



Scapanorhynchus, see Elfin Shark 



Scardinius, see Rudd 



Scaridae, see Parrot-fish 



Scams, 137; see also Parrot-fish 



Schilbeodes, see Mad Tom, Stone Cat 



Schistocephalus, 418 



Schooling sense, 204 



Sciaenid, sound-production, 156 f. ; 

 otoliths, 192; barbels, 196, 197; 

 systematic position, 378 



Scientific names, see nomenclature 



Sderopages, distribution, 270; S. lei- 

 chardti, 272 



Scleroparei, 379; see also Mail- 

 cheeked fish 



Scomber, see Mackerel 



Scombresox, see Saury, Skipper 



Scombroidea, 379 



Scorpaenidae, 379 



Scorpion-fish, 76; with symbiotic 

 hydroids, 249 ; systematic position, 



379 

 Sculpin, 311, 379; see also Bull-head 

 Scurf, 370 

 Scutes, 89, 94 



Scyliorhinidae, 376 



Scyliorhinus, sec Spotted Dog-fish 



Sea Bream, teeth, food, 134; sys- 

 tematic position, 378 



Sea Cat-fish, parental care, 310; 

 eggs, 322 



Sea Devil, mouth, cephalic fins, 

 feeding, 105; teeth, 127 



Sea Dragon, 215 f., 216 



Sea fisheries, 385 f. 



Sea Horse, 11; form of body, 19; 

 locomotion, 24, 27; gills, 40; 

 tail, 74; rings and plates, 97; 

 feeding, 117; noises, 157; breed- 

 ing, 314 



Sea Lamprey, 64, 183; mouth, 104, 

 120; breeding, 287 f. 



Sea Leopard, 401 



Sea Louse, 416 



Sea Perch, 64, 213; dorsal fin, 67; 

 scales, 91 ; teeth, 134; colours, 207, 

 212, 220; systematic position, 378 



Sea Robin, pectoral fin, 80; shields, 

 96; see also Gurnard 



Sea Serpent, 428 f. 



Sea Snail, pelvic fins, 81 



Sea Snake, 428 



Sea Squirt, see Ascidian 



Sea Toad, pectoral fin, 79 



Sea Trout, 218, 267, 366; fisheries, 

 412; diseases, 414; parasites, 

 416 f. 



Sebago Salmon, 266 



Sebastes, see Norway Haddock 



Secondary sexual characters, 294, 

 298 f. 



See-Aal, 385 



Segmentation, 323 f. 



Seine, 390 f., 392 f. 



Selachians, 6; fins, 57; gills, 34 f. ; 

 external gills, 43, 328; pelvic fins, 

 83; dermal denticles, 85; mouth, 

 104 f. ; jaws, 106 f. ; teeth, 120 f. ; 

 vertebral column, 163; spiral valve, 

 170 f. ; heart, 172; brain, 178; 

 optic nerves, 180; nasal organs, 

 182; lateral line, 199; claspers, 

 294 f-; eggs, 318 f.; origin, fossil 

 forms, 350 f. ; classification, 350 f., 



373 .f. 

 Semicircular canal, 191 

 Semionotidae, 360 

 Sense organs, 182 f. 



