Friday, September 30, 2011

How to make the shell of a bivalve.

It is imagined that there are three kinds of methods of making the shell of a bivalve.
One makes a film on the surface of the shell of a hard clam, and it puts lime in it and makes a shell.




That to which two have unevenness of a shell for length on the surface of a shell is the method of making a shell for lime with thread and bodily secretion (null).

That to which three have unevenness of a shell sideways on the surface of a shell is the method of spraying lime on a shell from a water tube, and making a shell.


二枚貝の貝殻を作る方法は、3種類あると想像する。
1つは、ハマグリの貝殻の表面に膜を作りその中に石灰を入れて貝殻を作る。(例)ハマグリ
2つは、貝殻の表面に縦向きに貝殻の凹凸があるものは、糸と分泌液(ヌル)によって石灰を貝殻を作る方法。(例)アサリ
3つは、貝殻の表面に横向きに貝殻の凹凸があるものは、水管から石灰を貝殻に吹き付けて貝殻を作る方法。(例)ホンビノス

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