. St. Nicholas [serial] . ith hammers and wedges, were digging rock-oysters,of which they are very fond. Tourists also like thenovelty of knocking the rocks to pieces, and somereally enjoy eating the rock-oysters. The photographis of a number of these pleasure-seekers, and was takenby A. L. Thomas of Nyebrook. The scientific name of the rock-oyster is are really a variety of clam, and are cousins tothose that live in the mud. When the Pholas is first hatched it is very swims about in the water for several days, until itsshell begins to grow. Then it fastens upon a rock,and
. St. Nicholas [serial] . ith hammers and wedges, were digging rock-oysters,of which they are very fond. Tourists also like thenovelty of knocking the rocks to pieces, and somereally enjoy eating the rock-oysters. The photographis of a number of these pleasure-seekers, and was takenby A. L. Thomas of Nyebrook. The scientific name of the rock-oyster is are really a variety of clam, and are cousins tothose that live in the mud. When the Pholas is first hatched it is very swims about in the water for several days, until itsshell begins to grow. Then it fastens upon a rock,and at once begins wriggling and working to make ahole in the rock. The rasp on its shell aids it, andthis rasp and the sand that is washed between it andthe rock are the only tools the Pholas uses. It makeslittle or no difference whether the rock is soft or hard,except that it takes longer to work in the hard when the Pholas has made a hole large enough torest in, it does not stop its work, but the larger it grows. GATHERING ROCK-OYSTERS. the larger it makes its home. The entrance it madeinto this home is small, and now that the Pholas is full-grown it can never get out. The sand shifts in to acertain degree, but there is always an opening. ThePholas has a long neck or tube which it reaches outthrough this entrance into the water, and throughwhich it receives its food. Agnes Dorothy Campbell (age 14). The August Nature and Science containedan interesting article on these remarkable shell-fish. ST. NICHOLAS LEAGUE.
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Keywords: ., bookauthordodgemar, bookcentury1800, bookdecade1870, bookyear1873
