Striarca lactea (Linnaeus, 1758)
Arcoidea : Noetiidae
Robust but not thick.
Slightly inequilateral, beaks just infront of midline.
Oblong; umbos prominent; dorsal margin straight; posterior oblique almost straight; ventral relatively long, gently curved to almost straight; anterior broadly rounded.
Dorsal area wide, cleft; posterior area set off by a weak rounded carina.
Sculpture: Primary sculpture of very many fine radial riblets, all finely nodulose, those on anterior and posterior slopes more prominent and more widely spaced; secondary riblets added with growth. Margin: Inner margin smooth, some with indentations corresponding to radial riblets. Ligament: Duplivincular, arranged in parallel bands across the dorsal area, these added from between the beaks symmetrically. Hinge: Strong, of taxodont teeth set on an arched hinge plate; marginal teeth much stronger than medials. Pallial Musculature: Adductor muscles of roughly equal size, both a little raised and with myophoric flanges. Periostracum: Often persistent, of dense, brown, short hairs arising from between the riblets. Colour: White.
Distribution & Ecology
Continental Shelf (to 200m)
Additional Information & Related Species
Key Features & Similar Species
Arcoidea : Noetiidae
Listed are literature citing Striarca lactea (Linnaeus, 1758). Reference containing the species Type Description is highlighted.
Linnaeus C 1758. Systema Naturae. Editio decima. 1. Regnum Animale Holmiae, Laurentii Salvii. 824pp.
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