Tylodina perversa

{{Speciesbox

| image = Tylodina perversa.jpg

| image_caption = A live individual of Tylodina perversa, head end towards the top

| taxon = Tylodina perversa

| authority = (Gmelin, 1791)

| synonyms =

}}

Tylodina perversa, common names the "yellow tylodina" or "yellow umbrella slug", is a species of sea snail or false limpet, a marine opisthobranch gastropod mollusk in the family Tylodinidae.

This opisthobranch has a limpet-like shell which is composed primarily of protein, not calcium carbonate.

Distribution

This species of false limpet occurs in the northeastern Atlantic including the British Isles and the Mediterranean Sea.

T. perversa feeds on the sponge species Aplysina aerophoba.

File:Tylodina perversa DSC 0115.jpg|Tylodina perversa on the Aplysina aerophoba, in Ližnjan, Croatia

File:Tylodina perversa DSC 0149.jpg|Spiral egg ribbon of the Tylodina perversa, in Ližnjan, Croatia

File:Tylodina perversa DSC 0336.jpg|Close-up of the Tylodina perversa, in Ližnjan, Croatia