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Primitive jawless aquatic vertebrate lampreys
Answer for the clue "Primitive jawless aquatic vertebrate lampreys ", 12 letters:
cyclostomata
Alternative clues for the word cyclostomata
Word definitions for cyclostomata in dictionaries
The Collaborative International Dictionary
Word definitions in The Collaborative International Dictionary
Cyclostomata \Cy`clo*stom"a*ta\ (s?`kl?-st?m"?-t?), ||Cyclostoma \Cy*clos"to*ma\ (s?-kl?s"t?-m?), n. pl. [NL., fr. Gr. ky`klos circle + sto`ma, -atos mouth.] (Zo["o]l.) A division of Bryozoa, in which the cells have circular apertures.
Wikipedia
Word definitions in Wikipedia
Cyclostomata is a group of chordates that comprises the living jawless fishes : the lampreys and hagfishes . Both groups have round mouths that lack jaws but have retractable horny teeth. The name Cyclostomata means "round mouths". Their mouths cannot close ...