Serpulorbis sipho Lamark 1818
worm shell
Serpulorbis sipho,worm shell

Family Vermetidae - worm shells

The Worm Shell, Serpulorbis sipho, is a gastropod, and totally unrelated to worms. One end of the shell forms a tight spiral, the other end forms a loose and very irregular shape. Most members of this family feed by trapping plankton on a string of mucus.

Distribution =   widespread Indo-West Pacific
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