Proteocephalidae
plural noun
Pro·teo·ce·phal·i·dae
Definition of Proteocephalidae
: a family of tapeworms that are parasites of fishes, have scolices resembling those of members of the Cyclophyllidae and reproductive organs like those of members of the Tetraphyllidea, and are sometimes placed in either of these orders but now more usually isolated in a separate order
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