Learn how to say Serpulid correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word serpulid:
a small marine fan worm which lives in a twisted shell-like tube, typically in colonies, with retractable tentacles for filter-feeding.
Family Serpulidae, class Polychaeta
late 19th century: from modern Latin Serpulidae (plural), from late Latin serpula ‘small serpent’, from Latin serpere ‘to creep’