Dwarf sea hare

Dwarf sea hare
Aplysia parvula
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
(unranked): clade Heterobranchia
clade Euthyneura
clade Euopisthobranchia
clade Aplysiomorpha
Superfamily: Aplysioidea
Family: Aplysiidae
Genus: Aplysia
Species: A. parvula
Binomial name
Aplysia parvula
Guilding in Mørch, 1863[1]
Synonyms[2]
  • Aplysia concava Sowerby, 1869
  • Aplysia norfolkensis Sowerby, 1869

The dwarf sea hare or pygmy sea hare, Aplysia parvula, is a species of sea slug, specifically a sea hare, a marine gastropod mollusc in the Aplysiidae family.[2]

Distribution

This is a circumtropical sea hare. It usually occurs in less than 5 m of water, but is occasionally found in water as deep as 24 m.[3]

The type locality of Aplysia parvula is Saint Vincent, Lesser Antilles.[1]

Description

The dwarf sea hare is round-bodied and smooth-skinned with a slender head bearing extensions which resemble rabbit ears. There are wing-like flaps (parapodia) extending from the body, which is brown to maroon or olive green in colour and may be covered with clusters of white spots.[4]

The maximum recorded length for this animal is 60 mm.[5]

the dwarf sea hare with its egg ribbon

Ecology

The minimum recorded depth for this species is 0.5 m; maximum recorded depth is 30 m.[5]

The species is a herbivore, and feeds on different types of algae. Its egg mass is a tangled mass of sticky orange, green or brown strings found under rocks or among algae.[4]

References

  1. 1 2 Mørch O. A. (1863). "Contributions la faune malacologique des Antilles danoises". Journal de Conchyliologie 11: 21-43.
  2. 1 2 Rosenberg, G.; Gofas, S. (2012). Aplysia parvula Mørch, 1863. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=138757 on 2012-03-31
  3. Zsilavecz G. (2007). Nudibranchs of the Cape Peninsula and False Bay. ISBN 0-620-38054-3
  4. 1 2 Gosliner T. M. (1987). Nudibranchs of Southern Africa ISBN 0-930118-13-8
  5. 1 2 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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