Ptychatractidae

Ptychatractidae is a taxonomic family of sea snails, marine gastropod mollusks in the superfamily Turbinelloidea.^{[1] [2]}

Ptychatractidae
Exilia vagrans
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Neogastropoda
Superfamily:	Turbinelloidea
Family:	Ptychatractidae Stimpson, 1865

Taxonomy

According to the taxonomy of the Gastropoda by Bouchet & Rocroi (2005), the family Ptychatractidae has no subfamilies.

Genera

Genera in the family Ptychatractidae include:

• Egestas Finlay, 1926^[3]
• Exilia Conrad, 1860^[4]
• Exilioidea Grant & Gale, 1931^[5]
• Metzgeria Norman, 1879^[6]
• Ptychatractus Stimpson, 1865^[7]
• Latiromitra Locard, 1897^[8] - In 2010 Latiromitra has been found to be closely related to Costellariidae in the molecular phylogeny analysis by Fedosov & Kantor (2010).^[9]

Genera brought into synonymy

• Benthovoluta Kuroda & Habe, 1950: synonym of Exilia Conrad, 1860
• Chathamidia Dell, 1956: synonym of Exilia Conrad, 1860
• Cyomesus Quinn, 1981: synonym of Latiromitra Locard, 1897
• † Graphidula Stephenson, 1941: synonym of Exilia Conrad, 1860
• Meyeria Dunker & Metzger, 1874: synonym of Metzgeria Norman, 1879
• Mitraefusus Bellardi, 1873: synonym of Exilia Conrad, 1860
• Okinawavoluta Noda, 1980: synonym of Latiromitra Locard, 1897
• † Palaeorhaphis Stewart, 1927 : synonym of Exilia Conrad, 1860
• Phenacoptygma Dall, 1918: synonym of Exilia Conrad, 1860
• Surculina Dall, 1908: synonym of Exilia Conrad, 1860
• † Zexilia Finlay, 1926 : synonym of Exilia Conrad, 1860