An eel-like jawless vertebrate with a round sucking mouth, of a former group that included the lampreys and hagfishes.
More example sentences
- Data concerning key evolutionary invertebrate and vertebrate groups, the protochordates, chondrichthyes and cyclostomes, are essential to establish evolutionary patterns of the peptides.
- The skeleton of cyclostomes furnishes far fewer taxonomic characters than that of the more complex cheilostomes.
- This extant species has erect jointed colonies, an articulated growth-form which seemingly evolved convergently with that of crisiid cyclostomes.
Definition of cyclostome in:
- The US English dictionary