Hypertext Webster Gateway: "Pectinibranchiata"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Pectinibranchiata \Pec`ti*ni*bran`chi*a"ta\, n. pl. [NL. See
{Pecten}, and {Branchia}.] (Zo["o]l.)
A division of Gastropoda, including those that have a
comblike gill upon the neck.
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