Lithophaga aristata, or the Scissor date mussel, is a species of bivalve mollusc in the family Mytilidae.

It can be found along the Atlantic coast of North America, ranging from North Carolina to Texas and the West Indies.

[1] Lithophaga aristata is known from North Carolina, Florida and the Caribbean.

[2] However, it is considered an invasive species in various regions of the globe, and is believed to be mainly dispersed through ballast water.

[2][3][4] Records of its occurrence outside the native range include the Brazilian coast, in the states of Ceará, Bahia, Rio de Janeiro, São Paulo and Santa Catarina;[4] Cape Verde (Santo Antão island);[5] Mauritania, Senegal and Angola.