196 



INDEX 



Salmon, how to distinguish a, from 

 a Sea Trout, 79 



family, the peculiar feature 



of the, 45 



, the members of the, 45 



Saprolegnia Ferax ("Fungus"), 19 

 Sardine, the Pilchard as a, 121 

 Sars, the Norwegian naturalist, 



107 

 Scallop, how to examine a, 143 



, the gills of the, 144 



, the mantle-cavity of the, 144 



, the eyes of the, 145 



Scenic negatives, how to obtain, 



176 

 Sea-horse, the mimicry of the, 34 

 Sea Trout, other names for the, 80 

 Sea Urchin, the, 140 



, tube feet of, 141 



Seine net, the use of the, 130 

 Shark, varieties of, in British waters, 

 39 



, the Blue, 39 



, the Hammerhead, 39 



, the Thresher, 39 



as the most ancient fish, 43 



Shrimp trawl, the, 133 



Silvery appearance in Trout, the 



cause of, 82 

 Skate, description of egg of the, 11 

 Smolt, Salmon, 59 

 " Snoods," 128 

 Spat, Oyster, 147 

 " Spat shells," 149 

 Spawning, the process of, 49 

 Stages of life, the four, 110 

 Star-fish, the common, 140 



, the suckers of the, 141 



, Mussels as food for, 152 



Stickleback, the parental duties of 

 the three-spined, 14 



, the change of colour in the 



male, 14 

 Stickleback's nest, the ten-spined, 

 13 



, the three-spined, 14 



Stone Loach, the alteration in the 



colour of the, 29-34 

 Suckers of the Star-fish, the, 141 

 Sunk box method of obtaining 



early life details, 101 



Tank photography, 160 et seq. 

 Tanks, the arrangement of the fish, 

 160 



, how to work with single fish, 



163 

 Teeth of the Carp, the throat, 97 

 Tench, the protective colouring of 



the, 30 

 Thayer, " Concealing Coloration in 



the Animal World," 32 

 Thor, the researches on the Danish 



boat, 125 

 Thornback Ray, the food of the, 40 

 Throat teeth of the Carp, 97 

 Tow net, description of the, 107 



, use by Sars, 107 



Trammell net, the use of the, 129 

 Transitory Plankton, description of, 



154 

 Transparency, how to suggest, 190 

 Trawl, the use of the, 127 



, the Beam, 133 



, the Otter, 133 



, the use of the Shrimp, 133 



Trawler, the size of a, 131 

 Tropical fish, the brilliant colours of, 



36 

 Trout, number of eggs laid by, 17 



, the different kinds of, 46 



, the life of a Brown, 48 



, the process of spawning, 49 



, the hatching of the young, 50 



, Loch Leven, 84 



, Rainbow, 84 



, the definition of a Bull, 84 



, the Great Lake, 85 



, the time of spawning of Rain- 

 bow, 86 



, the agility of, 89 



Turbot, oil globule in the egg of the, 



109 



Velum, 148 



" Well-mended " fish, 67 

 Whelk, the, 151 



, the radula of a, 151 



Wrasses, brilliant colours of, 37 



Yearling Trout, 54 



Yellow fin, the description of a, 80 



Printed by Cassell & Company, Limited, La Belle Sauvage, London, E.C. 



10.212 



