Lineus cf. lacteus

Lineus cf. lacteus  (Rathke, 1843)

Westbout, the Netherlands, 31-3-2022. In vitro photo specimen A, L: from 15 to 100 mm, 4-4-2022.

Westbout, the Netherlands, 31-3-2022. In vitro photo specimen A, 4-4-2022.

Identification by Marco Faasse (19-8-2024): "I think it is Lineus lacteus, but for more certainty I would like to know the number of eyes, not clearly visible. Not yet reported from the Netherlands."