Digitaria digitaria (Linnaeus, 1758)Crassatelloidea : Astartidae
To 10 mm.
Subequilateral, beaks just in front of midline.
Subcircular-subtrigonal, height = length; posterior sloping more steeply than anterior and curving gently; ventral broadly curved; anterior broadly curved.
Umbos low; escutcheon and lunule indistinct.
Sculpture: Of acentric grooves of decreasing spacing towards the margin. Margin: Inner margin smooth. Ligament: External, as an arched band behind the beaks. Hinge: RV with 3 cardinals, median large triangular, others laminar; anterior lateral groove prominent, posterior lateral ridge weak. LV with 2 cardinal teeth; anterior lateral ridge weak, posterior lateral groove prominent. Pallial Musculature: Pallial line entire. Periostracum: Persistent, yellowish brown in colour, frequently with weak radial rays of a darker hue. Colour: White tinged pale brown.
Distribution & Ecology
A southern species recorded as far north as the Cantabrian coast of Spain
Continental Shelf (to 200m)
Continental Margin Zone (200 - 500m)
Juveniles & Similar Species
Key Features & Similar Species
Listed are literature citing Digitaria digitaria (Linnaeus, 1758). Reference containing the species Type Description is highlighted.
Linnaeus C 1758. Systema Naturae. Editio decima. 1. Regnum Animale Holmiae, Laurentii Salvii. 824pp.
- Conchological Society
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