Amusium is a genus of scallops, marine bivalve molluscs belonging to the family Pectinidae. Previously, the genus contained several extant genera, but as of 2025 most species, such as A. balloti, A. fenestratum, and A. japonicum, were moved to the genera Dentamusium, Euvola, Parvamussium, Pecten, Propeamussium, and Ylistrum; subgenera were elevated to create some genera.
Currently, Amusium has a single recognized living species; Amusium pleuronectes <small>(Linnaeus, 1758)</small>.
The following are recognized extinct species within this genus (W = recognized by WoRMS; F = recognized by the Paleobiology Database):
- Amusium aguaclarensis <small>Hodson, 1927</small> W F
- Amusium alazanum <small>C. W. Cooke, 1928</small> W
- Amusium balloti F
- Amusium bocasense <small>Olsson, 1922</small> W F
- Amusium danei <small>(Stephenson, 1941)</small> W
- Amusium darwinianum <small>d'Orbigny, 1846</small> W
- Amusium decemcostatum <small>(K. Martin, 1885)</small> W
- Amusium filosum <small>Hauer, 1857</small> F
- Amusium figueirasi <small>S. MartÃÂnez, 1998</small> W
- Amusium hulshofi <small>Martin, 1883</small> W F
- Amusium kilifiense <small>Eames & L. R. Cox, 1956</small> W
- Amusium lompocensis <small>(R. Arnold, 1906)</small> W
- Amusium lucens <small>Tate, 1886</small> F
- Amusium lyonii <small>(Gabb, 1881)</small> W
- Amusium mafiaense <small>Eames & L. R. Cox, 1956</small> W
- Amusium mauryi <small>Hubbard, 1920</small> W
- Amusium mimyum <small>Woodring, 1982</small> W F
- Amusium mortoni <small>Ravenel, 1844</small> W F
- Amusium noduliferum <small>(K. Martin, 1885)</small> W
- Amusium ocalanum <small>(Dall, 1898)</small> W
- Amusium orientale <small>Dey, 1961</small> F
- Amusium papyraceum <small>Gabb, 1873</small> W F
- Amusium paris <small>del Rio, 1992</small> W F
- Amusium pembaense <small>Eames & L. R. Cox, 1956</small> W
- Amusium placunoides <small>(K. Martin, 1883)</small> W
- Amusium praeobliteratum <small>(Dollfus, 1917)</small> W
- Amusium precursor <small>(Dall, 1898)</small> W
- Amusium rorii <small>Reichler, 2010</small> W
- Amusium sol <small>Brown and Pilsbry, 1913</small> W F
- Amusium toulae <small>Brown and Pilsbry, 1911</small> W F
- Amusium tumbatuense <small>Eames & L. R. Cox, 1956</small> W
- Amussium destefanii F
- Amussium squamulum F
- Amussium subcorneum F
- Pecten (Amusium) condoni F
- Pecten (Amusium) laurentii F
- Pecten (Amussium) donaiensis F
- Pleuronectes elongatus F
- Pleuronectes vulsu F
A number of extinct Amusium species were either moved to genera such as Costellamusiopecten, Eburneopecten, Pernopecten, and Pseudentolium; or split out into the elevated subgenera Korobkovia and Lentipecten.
This genus is known in the fossil record from the Carboniferous period to the Quaternary period (age range: 336.0 to 0.012 million years ago). These fossils have been found all over the world.
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