Diaphorodoris lirulatocauda is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusc in the family Calycidorididae.

[2] This species was described from Earl's Cove, British Columbia, 49°45′N 124°01′W / 49.750°N 124.017°W / 49.750; -124.017.

[1] It occurs from Alaska south to Baja California, Mexico.

[3]