Okenia impexa

Okenia impexa is a species of sea slug, specifically a dorid nudibranch, a marine gastropod mollusc in the family Goniodorididae.[2]

Okenia impexa
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Heterobranchia
Order: Nudibranchia
Suborder: Doridina
Superfamily: Onchidoridoidea
Family: Goniodorididae
Genus: Okenia
Species:
O. impexa
Binomial name
Okenia impexa
Marcus, 1957[1]

Distribution

This species was described from Brazil. It is known from Brazil north to North Carolina, USA. It has also been reported from the western Mediterranean and the Cape Verde Islands.[3]

Description

This Okenia has a tall body and about five or six lateral papillae on each side of the mantle.[4]

The maximum recorded body length is 3–4 mm[5] or up to 7 mm.[6]

Habitat

Minimum recorded depth is 0 m.[6] Maximum recorded depth is 0 m.[6]

Ecology

The diet of this species is unknown but the shape of the animal resembles ascidian eating species of Okenia such as Okenia aspersa.

gollark: I mean, assuming they cooperate.
gollark: They do indeed look cool. I can breed one for you right now if you like.
gollark: They seem to come up lots in the forest, which is quite quiet usually, too.
gollark: All hail our xenowyrm overlords, as I like to say.
gollark: Er, hunt. I'm playing Minecraft too.

References
  1. Marcus, Er. (1957) On Opisthobranchia from Brazil (2). Zoological Journal of the Linnean Society, 43(292), 390-486.
  2. Okenia impexa Er. Marcus, 1957. Retrieved through: World Register of Marine Species on 10 January 2019.
  3. Rudman, W.B., 2004 (December 22) Okenia impexa Baba, 1938. [In] Sea Slug Forum. Australian Museum, Sydney.
  4. Valdés, Ángel; Hamann, Jeff; Behrens, David W.; DuPont, Anne. Caribbean Sea Slugs, Sea Challengers Natural History Books, Etc., Gig Harbor, Washington 2006, pp. 116-117. ISBN 0-9700574-2-3 page 124.
  5. Giannuzzi-Savelli, Riccardo; Chemello, Renato; Cattaneo-Vietti, Riccardo (1991). Atlas of Mediterranean nudibranchs. Atlante dei nudibranchi del Mediterraneo. Roma: Editrice La Conchiglia.
  6. Welch J. J. (2010). "The “Island Rule” and Deep-Sea Gastropods: Re-Examining the Evidence". PLoS ONE 5(1): e8776. doi:10.1371/journal.pone.0008776.
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