Chion dysoni semigranosus (English spelling) Chion dysonisemigranosus

...During this time, it burrows into the sand and extends a water tube to hunt for food such as plankton and floating organic matter. The closely related species, the wisteria shell Chion dysoni semigranosus , has a shell length of 1.3 cm, height of 0.9 cm, and width of 0.5 cm, and is similar in shape but slightly smaller. The shell surface has thin radial ribs, and the inner edge has fine notches.

*Some of the terminology that mentions "Chion dysoni semigranosus" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…その間砂中に潜ると水管を出してプランクトンや浮遊有機物などの餌をあさる。近似種のフジノハナガイ(藤の花貝)Chion dysoni semigranosusは殻の長さ1.3cm，高さ0.9cm，幅0.5cm，形は似るがやや小型。殻表には細い放射肋があり，内面の縁に細かい刻みがある。…

※「Chion dysoni semigranosus」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