. The sea-beach at ebb-tide : a guide to the study of the seaweeds and the lower animal life found between tidemarks . ILATK LXYIII. • hint liiiiii frairilis. Scala anuulata. enlarged. Natii-a rann-na. perspectivus, ii|i|>cr side,]ii-rs|n-ctivus.(n>]iiiliila ai-ulrata. GASTEROPODS 307 strate its ability to hide itself completely within its house and toclose the door very effectively by means of its operculum. Theeyes seem to be wanting, or they are concealed under Ihe, skinof the head. The shell is usually quite large, with a depressedspire and well-rounded whorls—especially the body-who
. The sea-beach at ebb-tide : a guide to the study of the seaweeds and the lower animal life found between tidemarks . ILATK LXYIII. • hint liiiiii frairilis. Scala anuulata. enlarged. Natii-a rann-na. perspectivus, ii|i|>cr side,]ii-rs|n-ctivus.(n>]iiiliila ai-ulrata. GASTEROPODS 307 strate its ability to hide itself completely within its house and toclose the door very effectively by means of its operculum. Theeyes seem to be wanting, or they are concealed under Ihe, skinof the head. The shell is usually quite large, with a depressedspire and well-rounded whorls—especially the body-whorl, whichappears to be greatly swollen. The umbilicus is usually open andmoderately large, the lip simple. GENUS Poli/nices (Lunutia, Nat-icu). P. heios (generally referred to as Lunatia or Nfiticd heros). One of the commonest large shells and one of the most characteristic speciesof the New England and New Jersey littoral fauna. It is exceedinglycommon along the Long Island shore, where it may be found on theopen beach, in pools with a sandy bottom left by the receding tide. It isusually partially and freque
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectmarinea, bookyear1901
