462 INDEX 



Turbot, caudal fin, 74; tubercles, 

 92; pyloric caeca, 169; colours, 

 221, 226; ambicoloration, 228; 

 number of eggs, 283 ; size, 424 



Twaite Shad, gill-rakers, 39, 42; 

 nomenclature, 373 



TylosuruSy see Gar-fish 



Tvphlicht/iys, 232 



Tvphlogobius, see Blind Goby 



Ulcer disease, 414 



Umbra, see Mud Minnow 



Undina, 357; tail, 62; U. gulo, 



358 

 Unicorn-fisli, 94 

 Upper pharyngeals, 128 

 Uranoscopus, see Star-gazer 

 Urenchelys, fins, 81 

 Urinary duct, 173 

 Urostyle, 61 

 Uterine villi, 325 

 Uterus, 325 

 Utriculus, 191 

 Uu, 303 



Vaca, colour variation, 208 f. 

 Vagus nerve, 181 

 Vandellia, see Candiru 

 Variation, 366, 368 

 Variety, 368 

 Vascular system, 172 f. 

 Vegetative pole, 323 f. 

 Veil-tail Goldfish, 420 

 Vein, 172 f. 



Velifer, dorsal fin, 65; see also Sail- 

 bearer 

 Vendace, 268 

 Venom, 140 f. 

 Vent, 168, 171 

 Ventral aorta, 172 

 Ventral fin, see pelvic fin 

 Ventricle, 172; of brain, 177 

 Ver blanc, 418 

 Vernacular names, 376 

 Vertebral column, 163 f. 

 Vesicle, of brain, 177 

 Vigneron-Dahl Trawl, 392 

 Visceral arches, 159 

 Vision, 190 

 Vitamins, 382 f. 

 Vitelline membrane, 321 

 Vitreous humour, 185 

 Vivaria, 408 



Viviparous Blenny, 328; dorsal fin, 



65; number of young, 327 

 Viviparous fishes, 325 f. 

 Viviparous Perch, 101 



Wallace's Line, 270 



War, effect on Plaice fishery, 403 



Warning colour, 223 f. 



Waterspout, 430 f. 



Weak-fish, see Meagre 



Weberian mechanism, 193 f. 



Weever, 141; dorsal fin, 69; mouth, 



III; poison gland, venom, 141 f., 



142; warning colours, 224 

 Wels, 64; dorsal fin, 66; food, 138; 



distribution, 277 

 West Africa, fish fauna, 257 

 Western Sea Trout, see Sewen 

 Whale, 2 f., 14 

 Whale Shark, 425; gill-rakers, 43; 



systematic position, 374; size, 425 

 Whitebait, 384 



White-fish, distribution, 267 f. 

 White Goby, see Transparent Goby 

 White-spot disease, 414 

 Whiting, 448; dorsal fin, 66; pyloric 



caeca, 169; colours, 226 

 Wide-mouth, 231; head, 131; jaws, 



inf.; teeth, 1 29 ; luminous organs, 



150 f.; barbel, 197, 198 

 Winter sleep, see hibernation 

 Wolf-fish, teeth, food, 134; eggs, 



321 f. ; systematic position, 379; as 



food, 385 

 Wrasse, locomotion, 27; rate of 



breathing, 43; mouth, 109; 



pharyngeals, 129; teeth, 133, 



137; poisonous flesh, 145; nostrils, 



182; sleeping, 204; nests, 310; 



systematic position, 378 



Xanthochroism, 227 

 Xenocara occidentalism 300 

 Xenopterygii, 379 

 Xiphias, see Sword-fish 

 Xiphiidae, 379 



Xiphophorus, see Sword-tailed Min- 

 now 



Yellow Eel, 289 f., 338 

 Yolk, 318, 320, 321, 323 f. 

 Yolk-sac, 325, 328 f. 

 Young, colours, 222 



