Pink mucket
Lampsilis abrupta (Say, 1831) |
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Pink mucket |
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| Lampsilis abrupta, INHS 13809. Tennessee River, Hardin County, Tennessee. Length: 3.6 inches (9.1 cm) for male (top), 2.9 inches (7.4 cm) for female (bottom).
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| Other common names Ohio mucket, tan mucket, square mucket.
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| Key characters A rounded to slightly elongate shell, thick, inflated, smooth, and yellowish brown; posterior end bluntly pointed in males, truncated in females.
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| Similar species Higgins eye, mucket, fatmucket, plain pocketbook,
hickorynut.
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| Description Shell round to elliptical, solid, and inflated. Anterior end rounded, posterior end bluntly pointed in males, truncated in females. Dorsal margin straight, ventral margin straight to slightly curved. Umbos
turned forward and elevated above the hinge line. Beak sculpture, if visible,
of three or four double-looped ridges. Shell smooth, yellow or yellowish green
and rayless or with faint green rays. Length to 4 inches (10.2 cm). Pseudocardinal teeth triangular, thick, divergent; two in the left valve, one in the right, occasionally with a smaller tubercular tooth in front. Lateral teeth short, heavy, and relatively thick. Beak cavity deep. Nacre pink or white, iridescent posteriorly.
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| Habitat The lower Mississippi and Ohio rivers and their larger tributaries in gravel or sand.
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Status Federally Endangered.
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