Smoothskin scorpionfish

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Smoothskin scorpionfish
Smoothskin scorpionfish.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Scorpaeniformes
Family: Scorpaenidae
Subfamily: Tetraroginae
Genus: Coccotropis
Barnard, 1927
Species:
C. gymnoderma
Binomial name
Coccotropsis gymnoderma
(Gilchrist, 1906)
Synonyms [2]
  • Tetraroge gymnodermaGilchrist, 1906

The smoothskin scorpionfish (Coccotropsis gymnoderma) is a species of ray-finned fish, a waspfish belonging to the subfamily Tetraroginae of the family Scorpaenidae, the scorpionfishes and their relatives. It is the only species in the monotypic genus Coccotropsis. This species is endemic to the seas off South Africa.

Contents

Taxonomy

The smoothskin scorpionfish was first formally described as Tetraroge gymnoderma in 1906 by the Scottish-born South African zoologist John Dow Fisher Gilchrist with the type localities given as Cape St. Blaize, Baird Island Lighthouse, False Island, Rockland Point, Seal Island and Fish Hook Bay in South Africa. [3] In 1927 Keppel Harcourt Barnard placed T. gymnoderma in the new monotypic genus Coccotropsis. Coccotropsis has been placed in its own monotypic subfamily, Coccotropsinae, by some authorities [4] but is included in the subfamily Tetraroginae within the Scorpaenidae in the 5th edition of Fishes of the World [5] however other authorities place that subfamily within the stonefish family Synanceiidae, [3] while other authorities classify this subfamily as a family in its own right. [2] The genus name is a compound of Coccotropus , a genus within the family Aploactinidae and opsis, which means "appearance", so the name means that this taxon is similar to Coccotropus but differs, among other features, in having three anal-fin spines and four anal-fin rays. The specific name, gymnoderma, means "naked skin" an allusion to this species' apparently scale-less, naked skin. [6]

Description

The smoothskin scorpionfish is a small, well-camouflaged fish, it has between 14 and 16 spines and 5 or 6 soft rays in its dorsal fin and 3 spines and between 3 and 6 soft rays in its anal fin. [2] It has an orange body with a distinctive cream patch to the rear. The fish may reach 50 mm in total length. The head has a pleated, wrinkled appearance and the dorsal fin has spines. The head may occasionally be pinkish. [7] [8]

Distribution and habitat

The smoothskin scorpionfish is only found off the South African coast from the Cape Peninsula to Algoa Bay in 9–110 m. It is endemic to this region. [7]

Ecology

This fish is common on reefs but is seldom spotted due to its cryptic colouring and sedentary habits. It is usually not solitary. In keeping with other members of the waspfish family, it is extremely venomous and contact should be avoided. [7] Little is known about the life history or ecology of this scheme. [1]

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References

  1. 1 2 Motomura, H.; Matsuura, K. & Khan, M. (2018). "Coccotropsis gymnoderma". IUCN Red List of Threatened Species . 2018: e.T114180416A116427687. doi: 10.2305/IUCN.UK.2018-2.RLTS.T114180416A116427687.en . Retrieved 18 March 2022.
  2. 1 2 3 Froese, Rainer; Pauly, Daniel (eds.) (2022). "Coccotropsis gymnoderma" in FishBase. February 2022 version.
  3. 1 2 Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Coccotropsis". Catalog of Fishes . California Academy of Sciences . Retrieved 18 March 2022.
  4. ↑ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Genera in the family Tetraroginae". Catalog of Fishes . California Academy of Sciences . Retrieved 18 March 2022.
  5. ↑ J. S. Nelson; T. C. Grande; M. V. H. Wilson (2016). Fishes of the World (5th ed.). Wiley. pp. 468–475. ISBN   978-1-118-34233-6.
  6. ↑ Christopher Scharpf & Kenneth J. Lazara, eds. (10 March 2022). "Order Perciformes (Part 10): Suborder Scorpaenoidei: Families Apistidae, Tetrarogidae, Synanceiidae, Aploacrinidae, Perryenidae, Eschmeyeridae, Pataceidae, Gnathanacanthidae, Congiopodidae and Zanclorhynchidae". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 19 March 2022.
  7. 1 2 3 Smith, M.M. and Heemstra, P.C. (eds.) 2003. Smiths' Sea Fishes ISBN   1-86872-890-0
  8. ↑ Zsilavecz, G. 2005. Coastal Fishes of the Cape Peninsula and False Bay ISBN   0-620-34230-7
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