Knoutsodonta depressa

Knoutsodonta depressa (Alder & Hancock, 1842)

Knoutsodonta depressa by Bernard Picton
Class: Gastropoda  Cuvier, 1797
Subclass: Heterobranchia  J.E. Gray, 1840
Clade: Euthyneura  Spengel, 1881
Clade: Nudipleura  Wägele & Willan, 2000
Order: Nudibranchia  Cuvier, 1817
Suborder: Euctenidiacea  Tardy, 1970
Infraorder: Doridacea  Thiele, 1931
Superfamily: Onchidoridoidea  J.E. Gray, 1827
Family: Onchidorididae  J.E. Gray, 1827
Genus: Knoutsodonta Hallas & Gosliner, 2015
Species: Knoutsodonta depressa (Alder & Hancock, 1842)


  • Onchidoris depressa (Alder & Hancock, 1842)
  • Doris depressa Alder & Hancock, 1842




  • Knoutsodonta, from the Greek meaning “lame tooth”, to represent
    nudibranch species that lack a rachidian or middle tooth.
  • Depressa. From Latin “depressus”, reduced, low, submerged.


Known georeferenced records of the species: Knoutsodonta depressa (z-200).
: GROC 2010-2011 : VIMAR
: Enric Madrenas : Manuel Ballesteros.
: João Pedro Silva : M@re Nostrum
: Bernard Picton : Other sources
: GBIF.ORG : Marine Regions

References for the species: Knoutsodonta depressa

    Galicia: Ortea and Urgorri (1979a), Ortea and Ballesteros (1982), Urgorri and Besteiro (1983, 1984). Portugal: Nobre (1938-40, as Doris). Andalucía (Atl.): García-Gómez (2002, as Onchidoris sp.).

    General: Brown & Picton, 1979:12; Hayward, Wigham, & Yonow, 1990:714; Just & Edmunds, 1985:68[P]; Picton & Morrow, 1994:62[P]; Thompson, 1988:180; Thompson & Brown, 1976:100; 1984:54[P]

    Sources: Cervera et al., 2004, Ballesteros, 2007, McDonald, 2006 and other sources.


        Western Mediterranean:0 Stars
        Eastern Mediterranean:0.0 Stars
        Atlantic Ocean:0.0 Stars
This chart displays the observation probability for Knoutsodonta depressa
based on our own records.

More pictures


Bibliography based on the works by Steve Long, 2006. Bibliography of Opisthobranchia 1554-2000 and Gary McDonald, 2009. Bibliographia Nudibranchia, with later updates from other resources.

Further reading

Cite this article as:

Ballesteros, Manuel, Enric Madrenas, Miquel Pontes et al. (2012-2017) "Knoutsodonta depressa" in OPK-Opistobranquis, Published: 04/11/2012, Accessed: 17/10/2017 at (

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