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case like the solenette and sole. ‘I'he sprat differs from 
the herring of its own size in having a row of prickles 
along the edge of the belly. It is a full-grown fish, and 
produces ripe spawn when it is about three inches long, 
whereas the herring does not become mature till it is over 
eight inches long. The eggs of the herring sink to the 
bottom when they are spawned. ‘The eggs of the sprat 
float on the surface. 
SEVENTH Day. 
The Shrimp and Crab. 
The Shrimp.—trhe stomach, liver, ovaries and 
testes. 
Breeding of the Shrimp.—Difference 
between the male and female shrimp. 
All shrimps carrying “berries,” or eggs, are females. 
The males never carry berries. All shrimps without ege's 
are not males however, for some may be females which 
have hatched out their eggs. The males are always 
smaller than the females, and not so numerous; but the 
only certain way to tell the sex is to examine their legs. 
The fifth pair of legs, counting from the tail, are different 
in male and female. 
Also, if the shrimp is opened up, and the generative 
organs examined, it will be seen that the male produces 
sperms, while the female produces eggs. 
Spawning.—The shrimp spawns twice in the 
year—in the late spring and in the autumn. When it 
spawns the eggs pass out of the ovaries and become 
fastened on to the legs. The mother then carries them 
till they hatch out, which takes place some months after 
spawning. When newly spawned the eggs are white, but 
the nearer they are to hatching the darker they become. 
