Reishia bronni (English name)

Japanese: レイシガイ(茘枝貝) - レイシガイ（英語表記）Reishia bronni

A gastropod shell of the Muricidae family (illustration). The shell can reach 6cm in height and 4cm in width, but is usually around 4cm in height. It is greyish-yellowish white with black spots, and is sturdy and thick. It has six layers, with two thick ribs on each layer and four on the larger body layers, and there are strong, large, knob-like nodes on the ribs. It is named after the shape that resembles the fruit of the lychee plant. The shell opening is wide and large, and the inside is yellow-orange. The outer edge is curved according to the ribs on the shell surface. The lid is leathery. It is found south of the Boso Peninsula (Pacific Ocean side) and Oga Peninsula (Sea of Japan side) and up to Taiwan, where it lives on rocky reefs from the intertidal zone to a depth of 20m.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

アクキガイ科の巻貝（イラスト）。殻の高さ6cm，幅4cmに達するが，ふつうは高さ4cmくらい。灰黄白色で黒斑があり，堅固で太い。巻きは6階で，各層に2本，大きい体層には4本の太い肋を巻くが，肋上に強く大きい瘤状の節がある。その形が植物のレイシの実に似ているのでこの名がある。殻口は広く大きく，内側は黄橙色。外縁は殻表の肋に応じて湾曲する。ふたは革質。房総半島(太平洋側)と男鹿半島(日本海側)以南，台湾まで分布し，潮間帯から水深20mまでの岩礁にすむ。

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

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