Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Spiralia
Cladus: Lophotrochozoa
Phylum: Mollusca
Classis: Gastropoda
Subclassis: Caenogastropoda
Ordo: Littorinimorpha
Superfamilia: Tonnoidea
Familia: Tonnidae
Genera (3): Eudolium – Malea - Tonna
Name
Tonnidae Suter, 1913 (1825)
Synonyms
Doliidae Latreille, 1825
Galeodoliidae Sacco, 1891
Macgillivrayiidae H. Adams & A. Adams, 1854
References
Primary references
Suter, H. 1913. Manual of the New Zealand Mollusca. Wellington: Mackay. xxiii + 1120 pp. Reference page.
Additional references
Bouchet, P. & Rocroi, J.-P. 2005. Classification and nomenclator of gastropod families. Malacologia 47(1–2): 1–397. BHL Reference page.
Links
Tonnidae in the World Register of Marine Species
Vernacular names
English: Tun shells
The Tonnidae are a family of medium-sized to very large sea snails, known as the tun shells. These are marine gastropod molluscs in the clade Littorinimorpha. The name tun refers to the snails' shell shape, which resembles wine casks known as "tuns". While thin, the shells are also strong and lack opercula. They are found in all tropical seas, where they inhabit sandy areas. During the day, they bury themselves in the substrate, emerging at night to feed on echinoderms (especially sea cucumbers), crustaceans, and bivalves. Some larger species also capture fish, using their expandable probosces to swallow them whole. Females lay rows of eggs that become free-swimming larvae for several months before settling to the bottom.[2]
Taxonomy
In 2005, these subfamilies were recognized in the taxonomy of Bouchet & Rocroi:
Cassinae Latreille, 1825
Oocorythinae P. Fischer, 1885
Phaliinae Beu, 1981
Tonninae Suter, 1913
Bouchet & Rocroi (2005) listed Cassidae as a synonym of Tonnidae Suter, 1913 (1825), following Riedel (1995) in this. However, later Beu (2008: 272) separated the two families.[3] This is in agreement with the action of Thiele (1925) who placed Tonnidae and Cassidae under "Tonnacea", therefore acting as first reviser under ICZN article 24. In this respect, the World Register of Marine Species follows the opinion of Beu.[4]
Genera
Genera and species within the family Tonnidae include:
The subfamily Cassinae has been raised to the rank of family Cassidae
Eudolium Dall, 1889
Malea Vallenciennes, 1832
Tonna Brunnich, 1771
Genera brought into synonymy
Cadium Link, 1807 : synonym of Tonna Brunnich, 1771
Cadus Röding, 1798 : synonym of Tonna Brunnich, 1771
Cassidaria Link, 1807 : synonym of Eudolium Dall, 1889
Doliopsis di Monterosato, 1872 (non Vogt, 1852; non Conrad, 1865) : synonym of Eudolium Dall, 1889
Foratidolium Rovereto, 1899: synonym of Tonna Brünnich, 1771
Macgillivrayia Forbes, 1852 : synonym of Tonna Brünnich, 1771
Dolium Lamarck, 1801: synonym of Tonna Brunnich, 1771
Parvitonna Iredale, 1931: synonym of Tonna Brunnich, 1771
Perdix Montfort, 1810: synonym of Tonna Brunnich, 1771
Quimalea Iredale, 1929: synonym of Malea Valenciennes, 1832
Further reading
Vaught, K.C. (1989). A classification of the living Mollusca. American Malacologists: Melbourne, FL (USA). ISBN 0-915826-22-4. XII, 195 pp.
References
MolluscaBase eds. (2020). MolluscaBase. Rhytididae Pilsbry, 1893. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=816183 on 2020-10-22
Rehder, Harold A., 1981, National Audubon Society Field Guide to Shells, pg. 503
Beu A. G. (2008). "Recent deep-water Cassidae of the world. A revision of Galeodea, Oocorys, Sconsia, Echinophoria and related taxa, with new genera and species (Mollusca, Gastropoda)". In: Héros V., Cowie R. H. & Bouchet P. (eds). "Tropical Deep-Sea Benthos 25". Mémoires du Muséum National d'Histoire Naturelle 196: 269-387. abstract in French.
Gofas, S. (2011). Cassidae. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=22999 on 2011-02-23
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