Myzostomata

‖My′zo‐stom″a‐ta (?), n. pl. [NL., fr. Gr. μύζειν to suck + στόμα, -ατοσ, mouth.] (Zoöl.) An order of curious parasitic worms found on crinoids. The body is short and disklike, with four pairs of suckers and five pairs of hook-bearing parapodia on the under side.