• Webster's Revised Unabridged Dictionary
    • n. pl Pectinibranchiata (Zoöl) A division of Gastropoda, including those that have a comblike gill upon the neck.
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Century Dictionary and Cyclopedia
    • pectinibranchiata In Cuvier's classification, the sixth order of gastropods, divided into three families, Trochoides, Capuloides, and Buccinoides.
    • pectinibranchiata An order of prosobranchiate gastropods, having comb-like gills formed of one (rarely two) longitudinal series of laminæ on the left side of the mantle over the back of the neck. The animal is unisexual, and the shell generally spiral. The order includes a majority of the aquatic univalves. Ctenobranchiata is a synonym. Also Pectinibranchia, Pectinobranchiata.
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Webster's Revised Unabridged Dictionary
NL. See Pecten, and Branchia