Tethys fimbria is a species of predatory sea slug, a nudibranch, a marine gastropod mollusk in the family Tethydidae. ICZN opinion 200 ruled that Tethys fimbria is a valid name and Tethys leporina Linnaeus, 1758 is a synonym. From Wikipedia
Researchers from MBARI have identified Bathydevius caudactylus, the first nudibranch to inhabit the ocean's midnight zone, after two decades of study.
