Economic mollusca of Acadia economicmollusca00gano Year: 1889 42 THE ECOXOMIC MOLLUSCA OF ACADIA. larger, and nearly as abundant. With that sperie-s it cHunot be con- founded, for it has a very lew spire, no waves, lines, or sculpturing of any kind except the simple longitudinnl lines of growth, and an aper- ture simply rounded below with no sign of a notch or canal. It is generally ash colored, and about two and a half inches long and two inches broad. It grows much larger than this, however, in favorable situations, andWillis mentions that he has had speci- mens from Sable Island measur- i
Economic mollusca of Acadia economicmollusca00gano Year: 1889 42 THE ECOXOMIC MOLLUSCA OF ACADIA. larger, and nearly as abundant. With that sperie-s it cHunot be con- founded, for it has a very lew spire, no waves, lines, or sculpturing of any kind except the simple longitudinnl lines of growth, and an aper- ture simply rounded below with no sign of a notch or canal. It is generally ash colored, and about two and a half inches long and two inches broad. It grows much larger than this, however, in favorable situations, andWillis mentions that he has had speci- mens from Sable Island measur- ing four or five inches in length, and broad in proportion. The Round Whelk is rarely found in rocky situations, prefer' ing sand and mud bottoms. It is not as particular about the puritjr of the water it inhabits as is generally supposed, for it is Fig. 8. -Lunatia Jieros. Natural Size, found up the St. Cioix River at the Raven's Head and perhaps further. On the flats of Oak Bay, especially on the borders of the deeper parts, it is exceedingly abundant, and there its habits may be easily watched. It not only lives on the surface, but beneath it, the great expanded muscular foot enabling it to burrow readily. Everywhere on the flats around our coast, there may be found valvi s of Mussels, Clams and other shells, many of which show a neatly bored round hole, one sixth of an inch in diameter. These are the remains of the victims oH Lunatia. Gra«ping the shell with its powerful foot, it rasps a hole through it with its file-like tongue, inserts its proboscis, and sucks out the juices and soft parts. Not only bivalves, but various Gasteropods* are attacked by it, and it is said even its own young. It even attacks successfully the great Beach-cbim (Jfactra solidisfiwia). It also feeds upon dead fish. Small specimens are frequently found resembling this species in .shape, but .showing three revolving •chestnut-colored bands. These are now considered a variety of L. heros, and ar
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