210 



THE STORY OF FISH LIFE. 



Sturgeons, origin of, 17. 

 skuU of, 48. 



„ eggs of, 113. 



,, ancestral, 180. 



Sucker-fishes, fins of, 64. 

 Sun-fish, food of, 133. 



,, young of, 137. 



,, form of, 165. 

 Sword-fish, feeding of, 87. 



,, transformations, 135. 



Tail, forms of, 53. 



,, position of, 60. 

 Teeth, evolution of, 38. 



,, forms of, 42. 

 Teleostomi, meaning of, 176. 

 Tench, \\ inter sleep of, 150. 

 Thallassoplcryne, poison of, 



156. 

 Thresher, feeding of, 84. 



Toothed-carp, aftinities of, 



189. 

 Tortoise-fish, armour of, 31. 



U. 



Undina, tail of, 57, 179. 

 Urolophus, poisonous tail- 

 spines of, 154. 



V. 



Vertebral column, structure 

 of, 170. 



W. 



Walking-fish, breathing of, 23. 

 Weaver-fish, poisonous, 155. 

 Whiting, feeding of, 31. 

 Wrasses, colours of, 71. 



