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scutibranchiata |
1 definition found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Scutibranchiata \Scu`ti*bran`chi*a"ta\, n. pl [NL. See {Scutum}, and {Branchia}.] (Zo["o]l.) An order of gastropod Mollusca having a heart with two auricles and one ventricle. The shell may be either spiral or shieldlike Note: It is now usually regarded as including only the Rhipidoglossa and the Docoglossa. When originally established, it included a heterogenous group of mollusks having shieldlike shells, such as Haliotis, Fissurella, Carinaria, etc