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TECTIBRANCHIATA.—APLYSIADÆ.
membranous crop; a curved bag, which is generally found filled with pieces of coarse sea-weed. This large crop or paunch occupies the right side of the
INTERNAL ANATOMY OF SEA-HARE.
body, and opens laterally into the middle stomach, which is the smallest of all, and performs the part of the gizzard. Its coats are thickened; and the