Si`pho*no*stom"a*ta (?), n. pl. [NL. See Siphon, and Stoma.] Zool. (a)
A tribe of parasitic copepod Crustacea including a large number of species that are parasites of fishes, as the lerneans. They have a mouth adapted to suck blood.
(b)
An artificial division of gastropods including those that have siphonostomatous shells.
© Webster 1913.