Ectopleura larynx (Ellis & Solander, 1786)
Flower head polyp - Gorgelpijppoliep
Borssele - filterchannel powerplant, the Netherlands, 30-8-2015. In vitro photo specimen A, 30-8-2015.*Borssele - filterchannel powerplant, the Netherlands, 30-8-2015. In vitro photo specimen A, 30-8-2015.*
Borssele - filterchannel powerplant, the Netherlands, 30-8-2015. In vitro photo specimen A, 30-8-2015.*
Borssele - filterchannel powerplant, the Netherlands, 22-7-2018. In vitro photo specimens B.**
* Marco Faasse about the identification: The stalks look like Ectopleura larynx, but I don't see any branches. It must be E. larynx in an unusual form. The exotic E. crocea occurs in large parts of the world, but has slightly different details of the gonophores.
** Identification by Marco Faasse.
** Identification by Marco Faasse.