Arcuatula arcuatula (Hanley, 1843)

Arcuate mussel

Native range | All suitable habitat | Point map | Year 2050

This map was computer-generated and has not yet been reviewed.

Arcuatula arcuatula AquaMaps Data sources: GBIF OBIS

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Arcuatula arcuatula

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

Bivalvia | Mytilida | Mytilidae

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

Indo-West Pacific: from northwest Indian Ocean, including the Red Sea, to Indonesia; north to Vietnam and south to New Caledonia. Exact distribution of this species is not known, because of confusions with other related mytilid species.

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

Chín muồi sinh dục: L_m ? range ? - ? cm Max length : 5.0 cm TL con đực/không giới tính; (Tài liệu tham khảo 348); common length : 3.0 cm TL con đực/không giới tính; (Tài liệu tham khảo 348); Tuổi cực đại được báo cáo: 2.00 các năm (Tài liệu tham khảo 8702)

Short description Hình thái học

Shell rather small, thin and fragile, somewhat translucent, roughly elongate trapeziform in outline, with very long and rather narrow shape. Anterior margin of valves quite short and sharply rounded, clearly extending forwards beyond the umbones. Ventral margin very long and broadly concave medially. A broad and rounded keel, radiating obliquely towards posteroventral end of valves and bordered anteriorly by a wide and shallow depression determining the sinuation of ventral margin. Outer surface of valves smoothish with only fine concentric growth lines and a few small radial grooves in front of the umbones. Periostracum smooth and shiny, translucent, closely applied to shell surface. Hinge line with very small crenulations, mainly appearing behind the ligamental margin. Anterior adductor scar present. Internal margins very thin and smooth, undulate anteriorly in relation to the outer radial sculpture. Colour: outer coloration variable, light tan to olive-green or brown, often paler on the keel, with a median radial band and sometimes irregular transverse stripes of purplish brown on posterodorsal slope. Interior slightly pearly, pale bluish grey with the outer colour pattern showing through.

On soft bottoms, often occurring gregariously. Intertidal and shallow subtidal waters (Ref. 348).

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.