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Taxonomy
Mactrella was named by Gray.
It was reranked as Mactra (Mactrella) by Dall (1898), Packard (1916) and Pilsbry and Olsson (1941).
It was assigned to Mactridae by Olsson (1931); and to Mactra by Dall (1898), Packard (1916) and Pilsbry and Olsson (1941).
It was reranked as Mactra (Mactrella) by Dall (1898), Packard (1916) and Pilsbry and Olsson (1941).
It was assigned to Mactridae by Olsson (1931); and to Mactra by Dall (1898), Packard (1916) and Pilsbry and Olsson (1941).
Subtaxa
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1898 | Mactra (Mactrella) Dall p. 895 |
| 1916 | Mactra (Mactrella) Packard p. 281 |
| 1931 | Mactrella Olsson p. 66 |
| 1941 | Mactra (Mactrella) Pilsbry and Olsson p. 11 |
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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.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| E. L. Packard 1916 | Shell thin, ventricose, trigonal, with a ridge marking off the posterior dorsal area ; umbones prominent ; dental armature concen- trated ; normal, narrow ligament ; anterior laminae very short. |