| Pinnidae (pen shells) |
| 24.3 cm DL (male/unsexed) |
|
benthic; marine; depth range 0 - 256 m |
| Western Atlantic. |
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Shell large, fan-shaped, triangular. Surface sculpture of about 15 narrow radial ribs separated by larger interspaces; ribs bearing regularly spaced, fluted spines. Muscle scar completely surrounded by nacreous layer. Hinge area straight, representing larger side of triangular shell outline. Byssus at pointed extremity anchors penshell into seagrass bottom. Gaping, shorter side of triangular shell outline oriented upward. Colour: dark olive brown; mantle colour pale yellow. |
| Maximum depth from Ref. 104365 In shallow-water seagrass beds. Burrows in fine sand leaving only the broad posterior region exposed to the outside environment (Ref. 344). |
|
Not Evaluated (N.E.) Ref. 123251)
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