noun
maculated top shell
A species of sea snail, Trochus maculatus. Used in biology and shell collecting.
ニシキウズガイは潮間帯の岩場で見られる。
The maculated top shell can be found on rocky shores in the intertidal zone.
The name ニシキウズガイ (錦渦貝) literally means 'brocade whirlpool shell', referring to the shell's patterned, spiraled appearance. The exact derivation is uncertain.