Cornisepta microphyma

{{Short description|Species of gastropod}}

{{Use dmy dates|date=August 2020}}

{{Speciesbox

| image = Cornisepta microphyma (10.5852-ejt.2021.785.1605) Figure 6 (cropped).png

| image_caption =

| taxon = Cornisepta microphyma

| authority = (Dautzenberg & H. Fischer, 1896)

| synonyms_ref =

| synonyms = * Fissurisepta microphyma (Dautzenberg & H. Fischer, 1896)

• Puncturella microphyma Dautzenberg & H. Fischer, 1896

}}

Cornisepta microphyma is a species of sea snail, a marine gastropod mollusk in the family Fissurellidae, the keyhole limpets.{{WRMS species|180873|Cornisepta microphyma (Dautzenberg & H. Fischer, 1896)}}