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Pseudamussium gilchristi
Taxonomy
Chlamys gilchristi was named by Sowerby (1904). It is extant.
It was recombined as Karnekampia gilchristi by Wagner (1988); it was recombined as Pseudamussium gilchristi by Dijkstra and Kilburn (2001).
It was recombined as Karnekampia gilchristi by Wagner (1988); it was recombined as Pseudamussium gilchristi by Dijkstra and Kilburn (2001).
Synonymy list
| Year | Name and author |
|---|---|
| 1904 | Chlamys gilchristi Sowerby |
| 1988 | Karnekampia gilchristi Wagner p. 42 |
| 2001 | Pseudamussium gilchristi Dijkstra and Kilburn p. 271 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
Pseudamussium gilchristi Sowerby 1904
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| H. H. Dijkstra and R. N. Kilburn 2001 | Shell up to ca. 35 mm high, suborbicular, RV somewhat more convex than LV, equilateral, auricles unequal, umbonal angle ca. 90°. LV sculptured with 8 rounded primary radial lirae, RV with 9 broader and flatter primary radial lirae and numerous granulose secondary radial ribs (LV with 3 on main ribs, 4 interstitial; RV with 5 on main ribs, 2 interstitial) with very fine and close-set radial riblets near ventral margin, covered with a periostracal layer (often damaged in adult stages). Microsculpture in early ontogeny of antimarginal striae, more prominent near anterior and posterior margins. Anterior auricle of LV with 4–6 lamellose radial and concentric ribs (cancellated in early ontogeny), on posterior with 3–4 weaker granulose radial riblets. Hinge line straight. Byssal fasciole rather broad, byssal notch narrow, active ctenolium with 5–7 teeth on suture. Auricular crura small, resilifer triangular. Colour orange or pinkish, internally glossy orange-yellow or reddish-orange. |