Aplysia concava

Aplysia concava
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Aplysiida
Family: Aplysiidae
Genus: Aplysia
Species:
A. concava
Binomial name
Aplysia concava
G. B. Sowerby I, 1833
Synonyms
  • Aplysia (Pruvotaplysia) concava G. B. Sowerby I, 1833 alternative representation
  • Aplysia norfolkensis G. B. Sowerby I, 1869 junior subjective synonym

Aplysia concava, common name the Norfolk Island aplysia, is a species of gastropod mollusc in the genus Aplysia, family Aplysiidae. [1]


Description

The length of the species attains 75 mm.

(Original description as Aplysia norfolkensis) The shell is horny, brown, and thinly constructed. It presents an arched, ventricose, and obliquely subovate form with a smooth surface. The apex is elevated and rounded, featuring a posterior auriculation (an ear-like projection). Its upper margin is sloped and excavated. The outer lip is rather convex, and the lower margin is rounded. The dorsal margin is arched, rounded, and thinly reflected near the apex, inclining obliquely towards the lower end. [2]

Distribution

This species occurs off New Zealand and in the Australian part of the Tasman Sea.

References

  1. ^ Aplysia concava G. B. Sowerby I, 1833. 24 September 2025. Retrieved through: World Register of Marine Species.
  2. ^ Sowerby II, G.B. (1869). Monograph of the genus Aplysia. In: Conchologia iconica, or, Illustrations of the shells of molluscous animals, vol. 17, pls 1-10 and unpaginated text. London: L. Reeve & Co. p. pl. 10. Retrieved 24 September 2025. Public Domain This article incorporates text from this source, which is in the public domain.
  • Golestani, H., Crocetta, F., Padula, V., Camacho-Garcia, Y.E., Langeneck, J., Poursandidis, J., Pola, M., Yokes, M., Cervera, J.L., Jung, D., Gosliner, T.M., Araya, J.F., Hooker, J., Schrödl, M., Valdés, Á. 2019 The little Aplysia is coming of age: from one species to a complex of species complexes in Aplysia parvula (Mollusca: Gastropoda: Heterobranchia), Zoological Journal of the Linnean Society, 187(2)
  • Nimbs, M.J., Willan, R.C., Smith, S.D.A. 2017 Is Port Stephens, eastern Australia, a global hotspot for biodiversity of Aplysiidae (Gastropoda: Heterobranchia), Molluscan Research, 37
  • Morley, M.S., Hayward, B.W. 2015 Intertidal records of 'sea slugs' (nudibranchs and allied opisthobranch gastropods) from northern North Island, New Zealand, Records of the Auckland Institute and Museum, 50
  • Brook, F.J., Marshall, B.A. 1998 The coastal molluscan fauna of the northern Kermadec Islands, southwest Pacific Ocean, Journal of the Royal Society of New Zealand, 28
  • Powell, A.W.B. 1979 New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland