Yoldiella solidula Warén, 1989
Nuculanoidea : Nuculanidae
Equilateral, beaks located at midline.
Oval: antero-dorsal and postero-dorsal margins short, almost horizontal; dorsal margin - posterior margin and dorsal margin - anterior margin junctions visible; anterior margin narrowly rounded or slightly pointed at the horizontal midline; posterior margin pointed above the horizontal midline, lower posterior margin obliquely truncated forming a weakly rostrate posterior margin in larger specimens; ventral margin deeply curved. Umbo broad, prominent above the dorsal margin, situated at the midline.
Sculpture: Virtually smooth, with only faint concentric lines and growth stops. Margin: Smooth. Ligament: Amphidetic, attached internally to the underside of the beak without a projecting chondrophore or resilifer. Hinge: Hinge very solid, broad, v-shaped with 6-8 robust chevron-shaped teeth on either side of the ligament. Periostracum: Glossy, dark straw-coloured, with darker coloured bands in older individuals. Additional Characters: The hind-gut forms a simple, rounded loop on the right side of the body.
Distribution & Ecology
Continental Margin Zone (200 - 500m)
Bathyal (500 - 2000m)
Abyssal Rise (2000 - 4000m)
Additional Information & Related Species
Nuculanoidea : Nuculanidae
Listed are literature citing Yoldiella solidula Warén, 1989. Reference containing the species Type Description is highlighted.
Killeen I.J. & Turner J. 2009. Yoldiella and Portlandia (Bivalvia) from the Faroe-Shetland Channel and Rockall Trough, Northeast Atlantic. Journal of Conchology. 39 (6): 733-778.
Warén A 1989. Taxonomic comments on some protobranch bivalves from the northeastern Atlantic. Sarsia. 74: 223-259.
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