Circomphalus disjectus (Perry, 1811)

Tasmania venus clam

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drawing shows typical species in Veneridae.

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

Bivalvia | Venerida | Veneridae

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

. Temperate

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

Endemic to southern Australia and Tasmania.

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

Chín muồi sinh dục: L_m ? range ? - ? cmCommon length : 5.1 cm SHL con đực/không giới tính; (Tài liệu tham khảo 360)

Short description Hình thái học

Shell: delicate, moderately swollen, equivalve and inequilateral, yellowish-whitish in color; sculpture has thin pink concentric lamellae, well-spaced, curve, grooved on the outer surface, prolonged posteriorly to form a spoutlike process; in between lamellae are thin growth lines; very longe ligament deeply set in the dorsal margin runs from the umbones to the end of the hinge which is heterodont with only three cardinal teeth on each valve; muscle scars almost equal (dimyarian, isomyarian); Pallial line has a shallow sinus (sinopalliate). Body: pair of gills each has two series of lamellae extensively fused in interlamellar junctions (eulamellabranch); foot and siphon moderately developed.

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.