frontal sail
From ZooTerms (Dictionary of Invertebrate Zoology)
Revision as of 23:34, 13 September 2013 by Andreas Plank (Talk | contribs) (1 revision: import_simple_(-definition))
frontal sail: (Mollusca: Gastropoda) In Prosobranchia, an erect transverse fold on the anterior part of the head which may be simple or formed into scallops, tubercles, or projections.
