| Needle pyram |
|
| A shell of Longchaeus acus from Samoa |
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| Scientific classification |
| Domain: |
Eukaryota |
| Kingdom: |
Animalia |
| Phylum: |
Mollusca |
| Class: |
Gastropoda |
| Family: |
Pyramidellidae |
| Genus: |
Longchaeus |
| Species: |
L. acus |
| Binomial name |
Longchaeus acus
|
|
| Synonyms |
- Lonchaeus acus [sic]Gmelin, 1791
- Longchaeus punctatus (Férussac, 1821)
- Pyramidella (Longchaeus) acus (Gmelin, J.F., 1791)
- Pyramidella acus (Gmelin, 1791)
- Pyramidella maculosa Lamarck, J.B.P.A. de, 1822
- Pyramidella musculosa Lamarck, J.B.P.A. de, 1816
- Pyramidella punctata Schubert, H.G. & A.J. Wagner, 1829 (invalid: homonym and synonym of Pyramidella punctata Férussac, 1821)
- Pyramidella punctata Férussac, 1821
- Voluta acus Gmelin, 1791 (original combination)
- Voluta guttata Link, H.F., 1807
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Longchaeus acus, common name the needle pyram, is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.