Okenia hiroi

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

Okenia hiroi
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Heterobranchia
clade Euthyneura
clade Nudipleura
clade Nudibranchia
clade Euctenidiacea
clade Doridacea
Superfamily:
Onchidoridoidea
Family:
Goniodorididae
Genus:
Okenia
Species:
O. hiroi
Binomial name
Okenia hiroi
(Baba, 1938)[1]
Synonyms

Hopkinsia hiroi Baba, 1938

Distribution

This species was described from the Kii peninsula, Japan. It has also been found in Korea and Hong Kong.[3]

Description

This Okenia has a broad flattened body and about nine elongate lateral papillae on each side of the mantle. These papillae are irregularly arranged and crowded and there are additional papillae arising from the back. The colour is bright pink with the papilae tipped with white or almost entirely white.[3] It is similar in shape, colour and diet to Okenia rosacea from the Pacific coast of America.

Ecology

The diet of this species is the bryozoan Integripelta acanthus.[4]

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References
  1. Baba,K. (1938) Opisthobranchia of Kii, Middle Japan. Journal of the Department of Agriculture, Kyusyu Imperial University, 6(1): 1-19.
  2. Rosenberg, G. (2015). Okenia hiroi (Baba, 1938). In: MolluscaBase (2015). Accessed through: World Register of Marine Species on 2015-10-23
  3. Rudman, W.B., 2004 (December 21) Okenia hiroi Baba, 1938. [In] Sea Slug Forum. Australian Museum, Sydney.
  4. Gordon D. P. & Rudman W. B. (12 June 2006). Integripelta acanthus n. sp. (Bryozoa: Eurystomellidae) — a tropical prey species of Okenia hiroi (Nudibranchia). Zootaxa 1229: 41-48.
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