タコノマクラ

noun

Japanese sea biscuit; Clypeaster japonicus

A species of sand dollar found in Japanese waters. The name literally means 'octopus pillow', referring to its shape.

• 海かい岸がんでタコノマクラの殻からを見みつけた。

  I found a Japanese sea biscuit shell on the beach.

• タコノマクラはウニの仲なか間まだ。

  The Japanese sea biscuit is a relative of sea urchins.