This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
FMIB Siphons protruding from blocks of wood containing Teredo Photographed in aquarium The long siphons anre the incurrent ones The.jpeg check categories September Siphons protruding from blocks of wood containing Teredo Photographed in aquarium The long siphons anre the incurrent ones The excurrent siphons are relatively short