. The sea-beach at ebb-tide : a guide to the study of the seaweeds and the lower animal life found between tidemarks . er; itwalks forward by means of theten feet, but swims backward byusing its caudal fin. It lives indeep water on rocky bottoms,hiding among stones, etc., butfrequents sandy shores as lives on dead and decayinganimal matter, and it would seemstrange that its flesh is so pala-table, were it not that we knowthat chemical combinations whichtake place in the assimilation offood make one kind as clean,when transformed, as the crustaceans have a sim-ilar dietary,
. The sea-beach at ebb-tide : a guide to the study of the seaweeds and the lower animal life found between tidemarks . er; itwalks forward by means of theten feet, but swims backward byusing its caudal fin. It lives indeep water on rocky bottoms,hiding among stones, etc., butfrequents sandy shores as lives on dead and decayinganimal matter, and it would seemstrange that its flesh is so pala-table, were it not that we knowthat chemical combinations whichtake place in the assimilation offood make one kind as clean,when transformed, as the crustaceans have a sim-ilar dietary, being scavengers ofthe sea; yet fishes find them moreacceptable than other animal food, and fishes capable of capturing largerprey subsist largely on the minute entomostracans described lobster is so large that it can easily be dissected, and will serve as atype of the structure of Crustacea. In dissecting one can follow thedescriptions given of the anatomy of Crustacea on page 2-iG, and will beinterested in observing the beautiful arrangement of the parts and theiradaptation to the uses they Homarus americanus, American lobster; male. LOBSTERS 263 The female lobster carries her eggs on the abdominal legs, to whichthey are glued by a kind of cement. After the young emerge from theegg, the zoea} still cling to the mother for a little time. The lobstermoults eight times the first year, five times the second, and three timesthe third year, after which the male moults twice and the female once ayear. It retires to some secluded spot for this operation, which is at-tended with many dangers. The back splits open longitudinally andthe animal slowly withdraws, leaving the shell complete. In preparationfor moulting, the lime around thecontracted joints of the chela? isabsorbed, so that the soft flesh canpass through. Any injury to alimb at the time of moulting, or which results from fighting or %V/ VY^yY* from any accident, is repaired at SvPv *•:* A \M successiv
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectmarinea, bookyear1901
