Spirobranchus triqueter or lamarcki - Keelworm species - soort Driekantige kalkkokerworm

Spirobranchus triqueter  (Linnaeus, 1758)* 

Keelworm - Driekantige kalkkokerworm 

or  

Spirobranchus lamarcki  (Quatrefages, 1866)*

Lamarck's keelworm - Gerichelde driekantkalkkokerworm

* See Spirobranchus lamarcki for information about identification.

Den Osse - Nieuwe Kerkweg, the Netherlands, 20-5-2021. Specimen A.

Den Osse - Nieuwe Kerkweg, the Netherlands, 20-5-2021. Specimen A.

Den Osse - Nieuwe Kerkweg, the Netherlands, 20-5-2021. Specimen A.

Anna Friso, the Netherlands, 4-3-2017. In vitro photo specimen B, diameter tube 4mm, 6-3-2017.

Anna Friso, the Netherlands, 4-3-2017. In vitro photo specimen B, 6-3-2017.

Anna Friso, the Netherlands, 4-3-2017. In vitro photo specimen B, 6-3-2017.

Anna Friso, the Netherlands, 4-3-2017. In vitro photo specimen B, 6-3-2017.

Anna Friso, the Netherlands, 4-3-2017. In vitro photo specimen B, 6-3-2017.

Anna Friso, the Netherlands, 4-3-2017. In vitro photo specimen B, 6-3-2017.

Dreischor - Kokrif, the Netherlands, 6-7-2021, spawning.

Den Osse - Nieuwe Kerkweg, the Netherlands, 7-12-2020. Specimen C.

Den Osse - Nieuwe Kerkweg, the Netherlands, 7-12-2020. Specimen C.

Kijkuitpolder, the Netherlands, 11-1-2021.

Den Osse - Nieuwe Kerkweg, the Netherlands, 20-5-2021.

Den Osse - Nieuwe Kerkweg, the Netherlands, 20-5-2021.

Kijkuitpolder, the Netherlands, 11-1-2021.

Dreischor - Kokrif, the Netherlands, 18-1-2021.