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Sertulariid hydroid
Sertularella tenella
- on trawled timber 2
Sertulariid hydroid
Sertularella tenella
- annulated hydrothecae 1
Sertulariid hydroid
Sertularella tenella
- colony with stolons 1
Sertulariid hydroid
Sertularella tenella
- colony with stolons 2
Sertulariid hydroid
Sertularella tenella
- annulated hydrothecae 2
Sertulariid hydroid
Sertularella tenella
- with 0.1mm division rule 1
Sertulariid hydroid
Sertularella tenella
- with 0.1mm division rule 2
Sertulariid hydroid
Sertularella tenella
- with 0.1mm division rule 3
Sertulariid hydroid
Sertularella tenella
- annulated hydrotheca 1
Sertulariid hydroid
Sertularella tenella
- annulated hydrotheca 2
A small number of specimens were found on timber containing Wood piddocks, Xylophaga dorsalis, that was caught offshore as a result of trawling. The wood was found in skip at Newlyn Harbour, Newlyn, Cornwall, 07.01.17.
Species kindly verified by Dr. Bernard Picton.