Idas argenteus Jeffreys, 1876
Mytiloidea : Mytilidae
Thin, fragile, hyaline.
Inequilateral beaks at about 1\4 of shell length from anterior.
A little compressed, umbos low.
Oblong, submodioliform with anterior only a little more narrow than posterior; dorsal and ventral margins of about equal length, subparallel to each other; ventral margin long slightly curved, dorsal margin almost straight, anterior and posterior margins rounded.
Prodissoconch I small, about 100μm in diameter, dimpled; Prodissoconch II large, about 600μm in diameter with concentric ridges only.
Sculpture: Smooth with a few growth lines. Margin: Inner margin smooth. Ligament: On a shallow resilifer behind the beaks extending about 1/2 the length of the posterior dorsal margin. Hinge: Hinge plate very narrow; about 10 simple crenulae in a group below the beaks; about 12 dyssodont teeth behind the ligament. Pallial Musculature: Indistinct. Periostracum: Thin with scattered short stubby hairs persistent mostly over posterior dorsal and anterior dorsal areas. Colour: White, semitransparent.
Distribution & Ecology
Bathyal (500 - 2000m)
Abyssal Rise (2000 - 4000m)
Abyssal Plain (4000m +)
Additional Information & Related Species
Mytiloidea : Mytilidae
Listed are literature citing Idas argenteus Jeffreys, 1876. Reference containing the species Type Description is highlighted.
Jeffreys J G 1876. New and peculiar Mollusca of the Pecten, Mytilus and Arca families, procured in the Valorous expedition. Annals and magazine of natural History. (4)18: 424-436.
Oliver PG & Holmes AM 2009. Idas lamellosus Verrill, 1881 (Bivalvia: Mytiloidea) a woodfall mussel new to the fauna of the northeast Atlantic. Journal of Conchology. 39 (6): 705-708.
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