- ctenactinia
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plural of ctenactinium
Dictionary of ichthyology. 2009.
ctenactinia
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aproctal bone — the ventral element in the priapium of the Phallostethidae on which articulate the ctenactinia (q.v.). Also called axial or pelvic bone … Dictionary of ichthyology
axial bone — the ventral element in the priapium of the Phallostethidae on which articulate the ctenactinia (q.v.). Also called aproctal or pelvic bone … Dictionary of ichthyology
ctenactinium — (plural ctenactinia)) the curved rod like clasper on the posterior side of the priapium in Phallostethidae … Dictionary of ichthyology
pelvic bone — 1) innominate bone (the pelvic fin bone in Gasterosteidae, sometimes a misnomer for the ectocoracoid. Also called pelvic plate, posterior process, pubic bone and medial plate) 2) the ventral element in the priapium of the Phallostethidae on which … Dictionary of ichthyology
