. The shell book . y passing a bit of meat overthe sand, then withdrawing it, served the same purpose of drawingthe animals, so strong is their sense of smell. The eggs of this Nassa are laid on seaweed. The capsulesare like flat purses, the size of a spangle, on short stems. Theseare attached to the stems of seaweeds, and overlap each otherin a single row. The young escape from the capsule through ahole at the top. They have ciliated lobes by which they antics they cut are amusing to watch, and seem to be merelyplayful, but are probably a struggle to resist capture by swarmsof infuso
. The shell book . y passing a bit of meat overthe sand, then withdrawing it, served the same purpose of drawingthe animals, so strong is their sense of smell. The eggs of this Nassa are laid on seaweed. The capsulesare like flat purses, the size of a spangle, on short stems. Theseare attached to the stems of seaweeds, and overlap each otherin a single row. The young escape from the capsule through ahole at the top. They have ciliated lobes by which they antics they cut are amusing to watch, and seem to be merelyplayful, but are probably a struggle to resist capture by swarmsof infusorians. The robust N. reticulata does great damage in the pares ofArcbachon, where the famous French oysters are raised. Likeour destructive drill, the Nassas of all ages bore the oystershells, and suck out the soft parts of their helpless victims. Thetide sweeps, in bringing fresh thousands of these destroyers, sothat combating them is a long, unequal fight. Fortunate for our oyster growers the dog whelks of the 74. 1 Ivory Shell, Ebitrna Japonica. 2 Macron j£thiopis. 1 Cantharus tincta. DOG WHELKS AND OTHERS 3 dira. 5 Dog Whelk, Aasjo trmllala, 4 Dog Whelk, Nassa fossata. e Dog Whelk, Nassa obsolela. 8 Chank, Turbonella fyrum.
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Keywords: ., bookcentury1900, bookdecade1900, bookidshellbook00r, bookyear1908
