Cymatioa cooki (Willett, 1937)

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drawing shows typical species in Galeommatidae.

Classification / Names Tên thường gặp | Các synonym ( Các tên trùng) | CoL | ITIS | WoRMS

Bivalvia | Galeommatida | Galeommatidae

Environment: milieu / climate zone / Mức độ sâu / distribution range Sinh thái học

. Tropical

Distribution Các nước | Các khu vực của FAO | Các hệ sinh thái | Những lần xuất hiện | Những chỉ dẫn

Eastern Central Pacific: USA.

Length at first maturity / Bộ gần gũi / Weight / Age

Chín muồi sinh dục: L_m ? range ? - ? cm

Short description Hình thái học

Shell: thin, fragile, subquadrate; inequilateral, posterior end much longer; sculpture of irregular, slightly wavy commarginal striae, and fine, dense punctae; ventral margin with sparse, broad, low radial undulations; periostracum thin, light beige, silky; hinge plate narrow; right valve with one short anterior cardinal tooth, one elongate posterior lateral tooth; left valve with two minute anterior cardinal teeth, one elongate posterior lateral tooth. Mantle: large, reflected, covering most of outer shell surface when fully extended, including umbones; two anterior and two posterior tentacles, short, slightly extending past shell margins. Foot: large, translucent, exceeding the length of the shell when fully extended, spathate, with distinct pointed heel.

Inhabits low intertidal, in boulders and cobbles. This species is an active crawler (Ref. 127827).

Life cycle and mating behavior Chín muồi sinh dục | Sự tái sinh sản | Đẻ trứng | Eggs | Sự sinh sản | Larvae

Members of the class Bivalvia are mostly gonochoric, some are protandric hermaphrodites. Life cycle: Embryos develop into free-swimming trocophore larvae, succeeded by the bivalve veliger, resembling a miniature clam.