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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
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 ...
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.