Aldisa albatrossae

Aldisa albatrossae is a species of sea slug, a dorid nudibranch, a marine gastropod mollusc in the family Cadlinidae.[2]

Aldisa albatrossae
Aldisa albatrossae off the Bonin Islands, Japan.
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Heterobranchia
Order: Nudibranchia
Suborder: Doridina
Superfamily: Doridoidea
Family: Cadlinidae
Genus: Aldisa
Species:
A. albatrossae
Binomial name
Aldisa albatrossae
Elwood, Valdés & Gossliner, 2000 [1]

Distribution

Described from Seragaki, Okinawa, Japan, this demersal nudibranch has a wide distribution in the tropical Pacific region. It has been found at depths between 3 and 72 m, in diverse places: Okinawa, the Philippines and North Sulawesi.[3]

Description

Aldisa albatrossae is a rather small nudibranch, with a length between 11 and 22 mm. The bluish gray dorsum is covered with many white, round tubercles. Typically there is a black line which starts in front of the rhinophores, and continues in a rectangular shape to the gills at the back. This black line then encompasses the gills. There are also yellow-orange markings on the corners of the rectangle. The lamellate rhinophores have a translucent, dirty-white color. The bipinnate gills only have a few branches, and have the same dirty white color.[4][5] It is believed to mimic species of Phyllidiella and shares this characteristic with some other species of Aldisa such as Aldisa williamsi, Aldisa erwinkoehleri and unrelated dorid nudibranchs such as Paradoris liturata.[1][6]

References
  1. Elwood, H.R.; Valdés, Á.; Gosliner, T.M. (2000). "Two new species of Aldisa Bergh, 1878 (Mollusca, Nudibranchia) from the Tropical Indo-Pacific". Proceedings of the California Academy of Sciences. 52 (14): 171–181. Retrieved 2015-03-10.
  2. Bouchet, P. (2015). Aldisa albatrossae Elwood, Valdés & Gosliner, 2000. In: MolluscaBase (2015). Accessed through: World Register of Marine Species on 2016-02-04
  3. Rudman, W.B., 2003 (August 28) Aldisa albatrossae Elwood, Valdés, & Gosliner, 2000. [In] Sea Slug Forum. Australian Museum, Sydney.
  4. Nakano, Rie (2004): "Opisthobranchs of Japan Islands" 304 pp.; Rutles, Inc. [In Japanese].
  5. Ono, Atsushi (2004): "Opisthobranchs of Ryukyu Islands" 304 pp.; Rutles, Inc. [In Japanese].
  6. Rudman, W.B., 2002 (March 11) Aldisa erwinkoehleri Perrone, 2001. [In] Sea Slug Forum. Australian Museum, Sydney.
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