Atactodea

{{Short description|Genus of bivalves}}

{{Automatic taxobox

| taxon = Atactodea

| authority = Gmelin, 1791

| type_species = Mactra glabrata

| type_species_authority = Gmelin, 1791

}}

Atactodea is a genus of saltwater clams of the family Mesodesmatidae described by William Healey Dall in 1895.{{BioRef|WoRMS |title=Atactodea Dall, 1895 |id=138173 |access-date=30 May 2024}}

The following species are recognized:

{{linked specieslist

|Atactodea cuneata | (Lamarck, 1818)

|Atactodea erycinaea | (Lamarck, 1818)

|Atactodea heterodon | (Reeve, 1854)

|Atactodea layardi | (Reeve, 1854)

|Atactodea striata | (Gmelin, 1791)

|Atactodea subobtusa | (Jousseaume, 1895)

}}