Dictyodoris tessellata Bergh, 1880 Halgerda tessellata is a species of sea slug, a dorid nudibranch, shell-less marine gastropod mollusks in the family Discodorididae.

[3][2] This species was described from Palau.

It occurs from the western shores of the Indian Ocean in Kenya, Tanzania and Madagascar to SE Australia and the Mariana Islands, Pacific Ocean.

[4][5]