The Melongenidae, the crown conchs and their relatives, are a taxonomic family of large to very large marine gastropods in the superfamily Buccinoidea.MolluscaBase eds. (2021). MolluscaBase. Melongenidae Gill, 1871 (1854). Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=160182 on 2021-02-27
Taxonomy For a while prior to 2004, the genera Busycon and Busycotypus were placed in the Melongenidae. Then, in 2004, based on their digestive systems and on cladistic analysis by Kosyan & Kantor (2004), these two genera were moved to the family Busyconidae within the superfamily Buccinoidea.
According to the taxonomy of the Gastropoda by Bouchet & Rocroi (2005), the Melongenidae consists of two subfamilies: Subfamily Melongeninae Gill, 1871 (1854) - synonyms: Cassidulidae Gray, 1854 (inv.); Galeodidae Thiele, 1925 (inv.); Volemidae Winckworth, 1945; Heligmotomidae Adegoke, 1977 Subfamily Echinofulgurinae Petuch, 1994
Genera Genera in the family Melongenidae include: Brunneifusus Dekkers, 2018 Hemifusus Swainson, 1840 Lenifusus Dekkers, 2018 Melongena Schumacher, 1817 - crown conchs Pugilina Schumacher, 1817 Saginafusus Wenz, 1943 † Sycostoma Cox, 1931 Taphon H. Adams & A. Adams, 1853 Volegalea Iredale, 1938 Volema Röding, 1798 Genera brought into synonymy Cassidulus Gray, 1854: synonym of Pugilina Schumacher, 1817 Galeodes Röding, 1798 : synonym of Melongena Schumacher, 1817 Semifusus Agassiz, 1846 synonym of Hemifusus Swainson, 1840 Thalessa H. Adams & A. Adams, 1853: synonym of Volema Röding, 1798
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