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Webster 1913 Edition
Scutibranchiata
‖
Scuˊti-branˊchi-a′ta
,Noun.
pl.
(Zool.)
An order of gastropod Mollusca having a heart with two auricles and one ventricle. The shell may be either spiral or shieldlike.
☞ 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.