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Melibe leonina.jpg
A live individual of Melibe leonina
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
(unranked): clade Heterobranchia

clade Euthyneura
clade Nudipleura
clade Nudibranchia
clade Dexiarchia
clade Cladobranchia
clade Dendronotida

Superfamily: Tritonioidea
Family: Tethydidae
Rafinesque, 1815
Type genus
2 genera

15 valid species and 3 doubtful species

  • Melibidae Forbes, 1844
  • Fimbriidae O'Donoghue, 1926 (inv.)
  • Tethymelibidae Bergh, 1890 (n.a.)

Tethydidae is a family of dendronotid nudibranch gastropod mollusks in the superfamily Tritonioidea.

The original spelling (subfamily) is Tethydia. It was placed on the Official List by Opinion 1182 of ICZN (1981: 174), which also ruled that the name should be corrected to Tethydidae (Bouchet & Rocroi, 2005).


This family is within the clade Cladobranchia and has no subfamilies (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).[2]


There are two[1] genera within the family Tethydidae:

Genera brought into synonymy 
  • Chioraera Gould, 1852 accepted as Melibe Rang, 1829
  • Jacunia de Filippi, 1867 accepted as Melibe Rang, 1829
  • Melibaea synonym of Melibe Rang, 1829
  • Propemelibe Allan, 1932 accepted as Melibe Rang, 1829


Species in this family do not possess a radula.[3]


  1. ^ a b Gosliner T. M. & Smith V. G. (2003). "Systematic review and phylogenetic analysis of the nudibranch genus Melibe (Opistobranchia: Dendronotacea) with descriptions of three new species". Proceedings of the California Academy of Sciences 54: 302-355. PDF.
  2. ^ a b Bouchet P.; Rocroi J.-P.; Frýda J.; Hausdorf B.; Ponder W.; Valdés Á. & Warén A. (2005). "Classification and nomenclator of gastropod families". Malacologia: International Journal of Malacology. Hackenheim, Germany: ConchBooks. 47 (1-2): 1–397. ISBN 3-925919-72-4. ISSN 0076-2997. 
  3. ^ a b Rudman W. B. (14 October 2002) "http://www.seaslugforum.net/factsheet.cfm?base=tethfimb". Sea Slug Forum, accessed 29 December 2010.

External links[edit]

Wikimedia Commons has media related to Tethydidae.