LOBSTER (HOMARUS VULGARIS) CONT"- 



PLATE 



Pi 4. 1 Longitudinal Horizontal Section (Female) 



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Fig- 2 . Longitudinal Vertical Section (Male 



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Fig.3, FRESH-WATER CRAYFISH (ASTACUS FLUVIATILIS 



, (Female ) 



& A K JoLnawn Kdinburgn It L 



