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The electric apparatus of a skate; other fishes with 
electric apparatus. 
Breeding.—NSkates, rays, dogfishes and sharks 
breed quite differently from all other fishes. In the case of 
most round fishes, flukes and soles, the eggs and milt are 
shed into the sea and fertilization takes place there so that 
there is no actual connection between the male and female. 
But in the case of the skates, rays, dogfishes and sharks 
the male makes connection with the female at the breeding 
Flounder 
@ 
Plaice 
@ 
Halibut. 
Eggs of various Fishes.—All natural size. 
season and the milt is passed into the body of the female 
and fertilizes the eggs before they are shed. 
The eggs of these fishes are quite different from those 
of the other fishes. They are very much larger and they 
are enclosed in a hard horny case called the purse. 
Then most other fishes lay a great number of eggs at 
one time (30,000 to 9,000,000), while a skate or dogfish 
