Circomphalus disjectus (Perry, 1811)

Tasmania venus clam

Upload your photos
Google image |

No image available for this species;
drawing shows typical species in Veneridae.

Classification / Names आम नाम | उपशब्द | CoL | ITIS | WoRMS

Bivalvia | Venerida | Veneridae

Environment: milieu / climate zone / गहराई सीमा / distribution range पारिस्थितिकी

. Temperate

Distribution देश | ऐफ ऐ ओ क्षेत्र | Ecosystems | संयोग | भूमिका

Endemic to southern Australia and Tasmania.

Length at first maturity / आकार / Weight / Age

परिपक्व अवधि: L_m ? range ? - ? cmCommon length : 5.1 cm SHL पुल्लिंग / अलिंग; (संदर्भ 360)

Short description आकृति विज्ञान

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 परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | Eggs | Fecundity | 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.