Kaya no Migai - Kaya no Migai

...Because they are abundant, they are used as materials for shell crafts. A closely related species, the large giant horn shell Contumax nodulosus , is found in tropical regions south of Okinawa, but off the coast of Japan, the black shell Clypeomorus humilis , which has prominent granules on its shell, and the cricket shell Contumax kobelti , which has strong ribs and stripes on its shell surface, are found south of the Boso Peninsula and are commonly found on rocky bottoms in the intertidal zone. [Habe Tadashige]...

*Some of the terminology that refers to "Kayanomigai" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…多産するので貝細工の材料になる。近縁種として沖縄以南の熱帯地方には大型のオニノツノガイContumax nodulosusを産するが，日本沿岸では殻上に顆粒（かりゆう）が著しく，黒みのあるカヤノミガイClypeomorus humilisや，殻表に強い肋や縞のあるコオロギガイ(コベルトカニモリガイ)Contumax kobeltiが房総半島以南に分布し，潮間帯の岩れき底にふつうに見られる。【波部 忠重】。…

※「カヤノミガイ」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