Halisarca species - Weke balletjesspons

Halisarca species  Johnston, 1842 maybe Halisarca cf. metschnikovi *

Weke balletjesspons

Synonym: Halisarca dujardinii

Zeelandbrug, the Netherlands, 20-3-2020.

Zeelandbrug - West, the Netherlands, 13-5-2021.

Zeelandbrug, the Netherlands, 20-3-2020.

Zeelandbrug, the Netherlands, 8-10-2024. Growing on Ascidiella spec.

Zeelandbrug, the Netherlands, 5-6-2023.

Zeelandbrug, the Netherlands, 20-3-2020.

Zeelandbrug - West, the Netherlands, 13-5-2021. Mixed with (yellow) specimens of Celtodoryx ciocalyptoides  (Gele wratspons).

Zeelandbrug, the Netherlands, 18-7-2024. At the top left Antiopella cristata  (Crystal sea slug - Blauwtipje).

Zeelandbrug, the Netherlands, 24-4-2020. At the top the flat variety of Hymeniacidon perlevis  (Bleke piekjesspons).

Zeelandbrug, the Netherlands, 24-4-2020.

Zeelandbrug, the Netherlands, 20-3-2020.

Zeelandbrug, the Netherlands, 20-3-2020.

* DNA analysis has revealed that the Dutch specimens are not Halisarca dujardinii. Further research is required.