Scutibranchiata :: Scutibranchiata (n. pl.) An order of gastropod Mollusca having a heart with two auricles and one ventricle. The shell may be either spiral or shieldlike.
Scutibranchiate :: Scutibranchiate (a.) Having the gills protected by a shieldlike shell; of or pertaining to the Scutibranchiata.