Halgerda

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Halgerda
Halgerda stricklandi.jpg
Halgerda stricklandi
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Heterobranchia
Order: Nudibranchia
Suborder: Doridina
Superfamily: Doridoidea
Family: Discodorididae
Genus: Halgerda
Bergh, 1880 [1]
Type species
Halgerda formosa
Bergh, 1880

Halgerda is a genus of sea slugs, dorid nudibranchs, shell-less marine gastropod mollusks in the family Discodorididae.

Contents

Taxonomy

The genus Halgerda was classified within the family Halgerdidae by Odhner (1934). [2] Halgerdidae Odhner, 1926, is treated as a synonym of Discodorididae in the taxonomy of Bouchet & Rocroi (2005). [3] See also Valdés (2002). [4] Seven species of Halgerda were described in the years 1880-1905, two species in 1932-1949, four species from 1975-1982, then 22 species in the years 1993-2001. In 2018 another six new species were described from Mozambique, highlighting the number of undescribed species on the African coast of the Indian Ocean. [5] A number of undescribed species are known and many species show considerable variation across their ranges, which may indicate that more cryptic species exist. [6]

Distribution

All species of Halgerda are confined to the Indo-West Pacific Tropical region apart from two species which are found in warm temperate waters of South Africa and Southern Australia and one species from warm temperate Japanese waters.

Species

Species within the genus Halgerda include: [7]

Related Research Articles

Doridoidea Superfamily of gastropods

Doridoidea, commonly known as dorid nudibranchs, are a taxonomic superfamily of medium to large, shell-less sea slugs, marine gastropod mollusks in the clade Doridacea, included in the clade Nudibranchia.

<i>Halgerda guahan</i> Species of gastropod

Halgerda guahan is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Discodorididae.

<i>Halgerda stricklandi</i> Species of gastropod

Halgerda stricklandi is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Discodorididae.

Discodorididae Family of gastropods

Discodorididae is a taxonomic family of sea slugs, specifically dorid nudibranchs, marine gastropod mollusks in the superfamily Doridoidea.

Halgerda dalanghita is a species of sea slug, a dorid nudibranch, shell-less marine gastropod mollusks in the family Discodorididae.

<i>Halgerda malesso</i> Species of gastropod

Halgerda malesso is a species of sea slug, a dorid nudibranch, shell-less marine gastropod mollusks in the family Discodorididae.

Halgerda fibra is a species of sea slug, a dorid nudibranch, shell-less marine gastropod mollusks in the family Discodorididae.

Halgerda maricola is a species of sea slug, a dorid nudibranch, shell-less marine gastropod mollusks in the family Discodorididae.

Halgerda onna is a species of sea slug, a dorid nudibranch, shell-less marine gastropod mollusks in the family Discodorididae.

<i>Halgerda terramtuentis</i> Species of gastropod

Halgerda terramtuentis is a species of sea slug, a dorid nudibranch, shell-less marine gastropod mollusks in the family Discodorididae.

<i>Halgerda toliara</i> Species of gastropod

Halgerda toliara is a species of sea slug, a dorid nudibranch, shell-less marine gastropod mollusks in the family Discodorididae.

<i>Halgerda tessellata</i> Species of gastropod

Halgerda tessellata is a species of sea slug, a dorid nudibranch, shell-less marine gastropod mollusks in the family Discodorididae.

<i>Aeolidia</i> Genus of gastropods

Aeolidia is a genus of sea slugs, aeolid nudibranchs, marine gastropod mollusks in the family Aeolidiidae.

<i>Halgerda indotessellata</i> Species of gastropod

Halgerda indotessellata is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Discodorididae.

Halgerda jennyae is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Discodorididae.

Halgerda leopardalis is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Discodorididae.

Halgerda meringuecitrea is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Discodorididae.

Halgerda mozambiquensis is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Discodorididae.

<i>Halgerda nuarrensis</i> Species of gastropod

Halgerda nuarrensis is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Discodorididae.

References

  1. Bergh, L.S.R. 1880. Beiträge zur Kenntniss der japanischen Nudibranchien. I. Verhandlungen der königlich-kaiserlich Zoologisch-botanischen Gesellschaft in Wien (Abhandlungen) 30:155-200, pls. 1-5, pages 191-5.
  2. Odhner N. H. (1934). "The Nudibranchiata, British Antarctic ("Terra Nova") Expedition, 1910". Natural History Report, Zoology7(5): 229-310.
  3. Bouchet, Philippe; Rocroi, Jean-Pierre; Frýda, Jiri; Hausdorf, Bernard; Ponder, Winston; Valdés, Ángel & Warén, Anders (2005). "Classification and nomenclator of gastropod families". Malacologia . Hackenheim, Germany: ConchBooks. 47 (1–2): 1–397. ISBN   3-925919-72-4. ISSN   0076-2997.
  4. Valdés A. (2002). "A phylogenetic analysis and systematic revision of the cryptobranch dorids (Mollusca, Nudibranchia, Anthobranchia)". Zoological Journal of the Linnean Society 136: 535-636. doi : 10.1046/j.1096-3642.2002.00039.x.
  5. Tibiriçá, Y.; Pola, M.; Cervera, J. L. (2018). Systematics of the genus Halgerda Bergh, 1880 (Heterobranchia : Nudibranchia) of Mozambique with descriptions of six new species. Invertebrate Systematics.
  6. Gosliner, T.M., Behrens,D.W. & Valdes,A., 2008. Indo-Pacific Nudibranchs and Sea Slugs. A field guide to the World's most diverse fauna. Sea Challengers Natural History Books & The California Academy of Sciences. ISBN   978-0-9700574-3-3
  7. Bouchet, P.; Gofas, S. (2014). Halgerda Bergh, 1880. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=205320 on 2015-01-25