What is having the gills protected by a shieldlike shell; of or pertaining to the Scutibranchiata. -- n. One of the Scutibranchiata called?

scutibranchiate — Having the gills protected by a shieldlike shell; of or pertaining to the Scutibranchiata. -- n. One of the Scutibranchiata. (Webster's 1913.)

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