Ensis minor

{{Short description|Species of bivalve}}

{{Speciesbox

| image = Chenu 1843 pl3 fig3 Ensis minor.png

| image_upright = 0.8

| genus = Ensis

| species = minor

| authority = (Chenu, 1843){{cite WoRMS |author=MolluscaBase |year=2018 |title=Ensis minor (Chenu, 1843) |id=140734 |accessdate=25 April 2018}}

| display_parents = 3

}}

Ensis minor, or the jackknife clam, is a long, smooth-shelled, burrowing clam found in the Atlantic Ocean. These clams are often collected for food. Ensis minor can grow up to {{convert|17|cm|abbr=on}} in length. It is white, sometimes with reddish-brown markings.