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Monophorus perversus 001.jpg
Dorsal view of a shell of Monophorus perversus
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
(unranked): clade Caenogastropoda

clade Hypsogastropoda
informal group Ptenoglossa

Superfamily: Triphoroidea
Family: Triphoridae
Gray, 1847

See text



Triphoridae is a family of very small sea snails, marine gastropod molluscs in the informal group Ptenoglossa, within the clade Hypsogastropoda. Almost all the species in this family are micromollusks and almost all are left-handed in shell-coiling.[1]

Shell description[edit]

The shells of triphorids are small and extremely high-spired, with numerous narrow whorls which often have distinctive sculpture. The majority of species in this family are left-handed or sinistral.


The following subfamilies were recognized in the taxonomy of Bouchet & Rocroi of 2005:

Gründel (1975), stated that the correct family name is Triforidae Jousseaume, 1884 and not Triphoridae, but this is only true when the genera Triforis and Triphora are placed in the same family (Kosuge, 1976). Marshall (1980) however stated that the two genera need to be placed in two different families: the Triforidae and the Triphoridae. [1]


Genera within the family Triphoridae include:[2][3][4]

Genera brought into synonymy 
  • Biforina Bucquoy, Dautzenberg & Dollfus, 1884 : synonym of Monophorus Grillo, 1877
  • Brucetriphora Beu, 2004: synonym of Costatophora B. A. Marshall, 1994
  • Distophora Laseron, 1958:synonym of Cautor Finlay, 1927
  • Epiforis Laseron, 1958:synonym of Mastoniaeforis Jousseaume, 1884
  • Euthymia Jousseaume, 1884:synonym of Euthymella Thiele, 1929
  • Ino Hinds, 1843:synonym of Inella Bayle, 1879
  • Macrosinister:synonym of Magnosinister Laseron, 1954
  • Mastoniaeformis [sic] : synonym of Mastoniaeforis Jousseaume, 1884
  • Mesophora Laseron, 1958: synonym of Coriophora Laseron, 1958
  • Notosinister Finlay, 1926: synonym of Monophorus Grillo, 1877
  • Orbitophora Laseron, 1958:synonym of Viriola Jousseaume, 1884
  • Risbecia Kosuge, 1966:synonym of Differoforis Kosuge, 2008
  • Sinistroseila W. R. B. Oliver, 1915: synonym of Viriola Jousseaume, 1884
  • Solosinister Laseron, 1954:synonym of Viriola Jousseaume, 1884
  • Tetraphora Laseron, 1958:synonym of Brucetriphora Beu, 2004
  • Torresophora Laseron, 1958: synonym of Euthymella Thiele, 1929
  • Triforis Deshayes, 1834:synonym of Triphora Blainville, 1828
  • Triphoris:synonym of Triphora Blainville, 1828


  1. ^ a b Bouchet, P. (2012). Triphoridae. Accessed through: World Register of Marine Species at on 2012-06-16
  2. ^ "Triphoridae". Integrated Taxonomic Information System. 
  3. ^ ZipCodeZoo
  4. ^ Powell A. W. B., New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979 ISBN 0-00-216906-1
  5. ^ Blainville (1828). Dict. Sci. Nat. 55: 344.