Sphenia binghami Turton, 1822
Myoidea : Myidae
Rather thin, brittle.
Inequivalve, RV slightly more convex than LV.
Inequilateral, beaks in the anterior 1/2.
Irregular, roughly rectangular, longer than high; anterior typically sloping steeply to rounded anterior ventral margin; ventral straight or sinuous; posterior dorsal slope long, typically subparallel with ventral but also variously sloping to a broad or narrow subtruncate posterior. Posterior area defined by an angular ridge running from the umbo to the posterior ventral junction.
Sculpture: Of co-marginal lines and irregular undulations. Margin: Inner margin smooth. Ligament: Internal on a small, shallow, projecting, roundly triangular chondrophore in LV, this extending posteriorly as a narrow shelf; RV with corresponding depression under the umbo. Hinge: Hinge without teeth. Pallial Musculature: Anterior adductor scar long, posterior scar round; pallial line wide, pallial sinus broad reaching the midline but lower arm terminating far from the posterior edge of the shell. Periostracum: Persistent, straw to olive brown in colour. Colour: Shell white.
Distribution & Ecology
Continental Shelf (to 200m)
Additional Information & Related Species
Myoidea : Myidae
Listed are literature citing Sphenia binghami Turton, 1822. Reference containing the species Type Description is highlighted.
Turton W 1822. Conchylia dithyra Insularum britannicarum. The bivalve shells of the British Islands London. 279pp, 20pls.
Yonge C M 1951. Observations on Sphenia binghami Turton. Journal of the Marine Biological Association of the United Kingdom. 30: 387-392.
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