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SCALES OF 'Il—IE HERRING.
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Photographed
show the annuli ; the scale on the left is from a small Herring
18 em. in length and has only one winter ring;'that on the right is from a large
Herring 34 em. in length and has eight winter rings… (From Lea.)
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05,5,
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INTEROPERCULAR BONES AND EAR—STONES (oîoZizs) OF PLAICE.
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Showing lines of growth.
(From=Heincké.)
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