Giant rock barnacle - Giant rock barnacle

...It is distributed south of the southwestern part of Hokkaido and is commonly seen along the coasts of various areas. Its related species, the giant rock barnacle C. pilsberyi , has a large, flat shell, about 1 to 1.8 cm in diameter, and grows higher than the rock barnacle only on rough rock reefs facing the open ocean on the Pacific coast south of central Honshu. In addition, the northern rock barnacle C. dalli is distributed north of southeastern Hokkaido, and the southern rock barnacle C. malayensis is distributed south of the Tokara Islands in Kyushu. ...

*Some of the terminology that refers to the "giant rock barnacle" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…北海道南西部以南に分布し，各地の沿岸にふつうに見られる。近似種オオイワフジツボC.pilsberyiは殻も大きく扁平で，直径1～1.8cmくらい，本州中部以南の太平洋岸の外洋に面した波の荒い岩礁に限り，イワフジツボよりも高所に着生する。ほかに，北海道南東部以北にはキタイワフジツボC.dalli，九州の吐噶喇（とから）列島以南にはミナミイワフジツボC.malayensisが分布している。…

※「オオイワフジツボ」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報