Thorunna

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Thorunna
Thorunna furtiva 001.jpg
A live individual of Thorunna furtiva , head end towards the right and turned towards the camera
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Heterobranchia
Infraclass: Euthyneura
Order: Nudibranchia
Superfamily: Doridoidea
Family: Chromodorididae
Genus:Thorunna
Bergh, 1878 [1]
Synonyms [2]
  • BabainaOdhner in Franc, 1968
  • Digidentis Rudman, 1984

Thorunna is a genus of sea slugs, dorid nudibranchs, shell-less marine gastropod mollusks in the family Chromodorididae. [3] [4] [5]

A genus is a taxonomic rank used in the biological classification of living and fossil organisms, as well as viruses, in biology. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus.

Sea slug group of marine invertebrates with varying levels of resemblance to terrestrial slugs

Sea slug is a common name for some marine invertebrates with varying levels of resemblance to terrestrial slugs. Most creatures known as sea slugs are actually gastropods, i.e. they are sea snails that over evolutionary time have either completely lost their shells, or have seemingly lost their shells due to having a greatly reduced or internal shell. The name "sea slug" is most often applied to nudibranchs, as well as to a paraphyletic set of other marine gastropods without obvious shells.

Nudibranch order of molluscs

Nudibranchs are a group of soft-bodied, marine gastropod molluscs which shed their shells after their larval stage. They are noted for their often extraordinary colours and striking forms, and they have been given colourful nicknames to match, such as "clown", "marigold", "splendid", "dancer", and "dragon". Currently, about 3,000 valid species of nudibranchs are known.

Contents

Description

The genus Thorunna contains chromodorid nudibranchs with a distinctive radula, which is very small and has 17-25 teeth in a half-row. The lateral teeth are long slender shafts with bluntly bifid tips. Species in this genus rarely exceed 20 mm (0.79 in) and wriggle or vibrate their gills rhythmically. Anatomically the buccal bulb is very small relative to most chromodorids and the oral tube very long. [6]

Species

Species in the genus Thorunna include: [2]

<i>Thorunna africana</i> species of mollusc

Thorunna africana is a small species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Chromodorididae.

William B. Rudman, usually known as Bill Rudman, is a malacologist from New Zealand and Australia. In particular he studies sea slugs, opisthobranch gastropod molluscs, and has named many species of nudibranchs.

<i>Thorunna arbuta</i> species of mollusc

Thorunna arbuta is a species of dorid nudibranch in the family Chromodorididae.

Thorunna australis is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Chromodorididae.

<i>Thorunna furtiva</i> species of mollusc

Thorunna furtiva is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Chromodorididae. It is the type species of the genus Thorunna.

<i>Thorunna halourga</i> species of mollusc

Thorunna halourga is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Chromodorididae.

Species brought into synonymy

Verconia decussata is a species of colourful sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Chromodorididae.

Felimare lapislazuli is a species of sea slug or dorid nudibranch, a marine gastropod mollusk in the family Chromodorididae.

Ardeadoris scottjohnsoni is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Chromodorididae.

Related Research Articles

Chromodorididae family of molluscs

The Chromodorididae, or chromodorids, are a taxonomic family of colourful, sea slugs; dorid nudibranchs, marine gastropod mollusks in the superfamily Doridoidea. “Chromodorid nudibranchs are among the most gorgeously coloured of all animals.” The over 360 described species are primarily found in tropical and subtropical waters, as members of coral reef communities, specifically associated with their sponge prey. The chromodorids are the most speciose family of opisthobranchs. They range in size from <10mm to over 30 cm, although most species are approximately 15–30 mm in size.

<i>Chromodoris</i> genus of molluscs

Chromodoris is a genus of very colourful sea slugs or dorid nudibranchs, marine gastropod molluscs in the family Chromodorididae. A molecular phylogeny of the family Chromodorididae resulted in this genus being restricted to a smaller number of species than formerly, most of which have longitudinal black lines on the mantle. Many former members of Chromodoris were transferred to Goniobranchus.

<i>Hypselodoris</i> genus of molluscs

Hypselodoris is a genus of colourful sea slugs or dorid nudibranchs, marine gastropod mollusks in the family Chromodorididae. Modern usage follows a more restricted view of which species belong in this genus so there are numerous genus transfers.

<i>Glossodoris</i> genus of molluscs

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

<i>Cadlina</i> genus of molluscs

Cadlina is a genus of sea slugs, dorid nudibranchs, shell-less marine gastropod mollusks historically classified in the family Chromodorididae. Recent research by R.F. Johnson in 2011 has shown that Cadlina does not belong to the family Chromodorididae. She has therefore brought back the name Cadlinidae from synonymy with Chromodorididae. The family Cadlinidae also includes the genus AldisaBergh, 1878.

Durvilledoris was a genus of sea slugs, dorid nudibranchs, shell-less marine gastropod mollusks in the family Chromodorididae. This genus has become a synonym of Mexichromis Bertsch, 1977 Although the type species of this genus was transferred to Mexichromis two species were not reallocated nor mentioned in the text.

<i>Risbecia</i> genus of molluscs

Risbecia is a genus of colorful sea slugs, dorid nudibranchs, shell-less marine gastropod mollusks in the family Chromodorididae.

<i>Mexichromis</i> genus of molluscs

Mexichromis is a genus of colourful sea slugs, dorid nudibranchs, shell-less marine gastropod mollusks in the family Chromodorididae. Current synonymy follows a revision of Chromodorididae which used molecular phylogeny.

Ardeadoris carlsoni is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusc in the family Chromodorididae. It was transferred to the genus Ardeadoris on the basis of DNA evidence.

Ardeadoris poliahu is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Chromodorididae.

Doriprismatica sibogae is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Chromodorididae.

Doriprismatica stellata is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Chromodorididae.

<i>Ardeadoris tomsmithi</i> species of mollusc

Ardeadoris tomsmithi is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Chromodorididae.

<i>Mexichromis pusilla</i> species of mollusc

Mexichromis pusilla is a species of sea slug or dorid nudibranch, a marine gastropod mollusk in the family Chromodorididae.

Mexichromis similaris is a species of sea slug or dorid nudibranch, a marine gastropod mollusk in the family Chromodorididae.

Thorunna perplexa is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Chromodorididae.

<i>Felimida</i> genus of molluscs

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

References

  1. Bergh, L.S.R. (1878). Malacologische Untersuchungen. In: C. Semper (ed.) Reisen im Archipel der Philippinen, Theil 2, Wissenschaftliche Resultate, Band 2, Theil 2, Heft 14: 603-645, I-L, pls 66-68.
  2. 1 2 MolluscaBase (2018). Thorunna Bergh, 1878. Accessed on 2018-12-23.
  3. Rudman W.B. (1984) The Chromodorididae (Opisthobranchia: Mollusca) of the Indo-West Pacific: a review of the genera. Zoological Journal of the Linnean Society 81 (2/3): 115-273. page(s): 216
  4. Johnson R.F. & Gosliner T.M. (2012) Traditional taxonomic groupings mask evolutionary history: A molecular phylogeny and new classification of the chromodorid nudibranchs. PLoS ONE 7(4): e33479.
  5. Rudman W. B. (1990). "The Chromodorididae (Opisthobranchia: Mollusca) of the Indo-West Pacific: further species of Glossodoris, Thorunna and the Chromodoris aureomarginata colour group". Zoological Journal of the Linnean Society 100(3): 263-326. doi : 10.1111/j.1096-3642.1990.tb01864.x.
  6. Rudman W.B. (1984) The Chromodorididae (Opisthobranchia: Mollusca) of the Indo-West Pacific: a review of the genera. Zoological Journal of the Linnean Society 81(2/3): 115-273. page(s): 163