Scutibranchiata

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.
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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