Ensis directus (Conrad 1843)
Solenoidea : Pharidae
To size: To 150mm. Shell Structure: Brittle. Equivalve: Equivalve. Equilateral: Inequilateral, beaks at the anterior end. Outline: Ensiform, broad, dorsal and ventral margins distinctly curved; anterior subtruncate; posterior obliquely truncate.
Sculpture: Of co-marginal lines and growth stops. Margin: Inner margin smooth. Ligament: External, a long narrow brown/black band behind the beaks. Hinge: LV with two rather bulbous cardinals and two laminar posterior laterals, one lying above the other; RV with a single laminar cardinal and a single posterior lateral. Pallial Musculature: Pallial sinus S-shaped, separation of posterior adductor scar and pallial sinus less than length of adductor scar. Anterior adductor scar slightly exceeding length of ligament; pedal retractor muscle adjacent to end of ligament. Periostracum: Green to dark brown anteriorly. Colour: Dirty white to gray with some cream mottling, internally some tinged buff/mauve.
Distribution & Ecology
Continental Shelf (to 200m)
Additional Information & Related Species
Solenoidea : Pharidae
Listed are literature citing Ensis directus (Conrad 1843). Reference containing the species Type Description is highlighted.
Conrad T A 1843. Descriptions of nineteen species of Tertiary fossils of Virginia and North Carolina. Proceedings of the Academy Science Philadelphia. I (33): 325.
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