Pogonoscorpius

Pogonoscorpius is a genus of marine ray-finned fish belonging to the family Scorpaenidae, the scorpionfishes. It is a monotypic genus, its ony species is Pogonoscorpius sechellensis which occurs in the western Indian Ocean in the seas around the Seychelles. It is a little known species and, as of 2018, only 2 specimens were known from the Seychelles. It may also occur in the Coral Sea and off Japan and it has been suggested that this taxon is a synonym of Rhinopias argoliba.[1] Others treat it as a valid species and state that it is endemic to the western Indian Ocean.[2]

Pogonoscorpius
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Scorpaeniformes
Family: Scorpaenidae
Subfamily: Scorpaeninae
Tribe: Scorpaenini
Genus: Pogonoscorpius
Regan, 1908
Species:
P. sechellensis
Binomial name
Pogonoscorpius sechellensis
Regan, 1908

Pgonoscorpius was first formally described as a genus in 1908 by the British ichthyologist Charles Tate Regan when he described its only species P. sechellensis, of which Regan gave the type locality as from a depth of 37 fathoms in the Seychelles.[3][4] The type was collected by John Stanley Gardiner.[5] The genus name is a compound of pogon meaning "beard", an allusion to the well developed mental barbel, and scorpius, a "scorpion" indicating that this is a scorpionfish. The specific name indicates that its origin is the Seychelles.[6]

Pogonoscorpius sechellensis is found at depths down to 68 metres (223 ft). This species reaches a length of 5.1 centimetres (2.0 in) SL.[2]

Pogonoscorpius sechellensis is similar to the species in the genus Rhinopias but differ in colouration and in the possession of a mental barbel. It has 12 spines and 9 soft rays in the dorsal fin, the last ray being split and is sometimes counted as 1.5 rays. The anal fin has 3 spines and 5 soft rays. The colour is described a yellowish with reddish tinged fins.[7]

References

  1. Motomura, H.; Matsuura, K.; Khan, M. (2018). "Pogonoscorpius sechellensis". IUCN Red List of Threatened Species. 2018: e.T114177913A115546768. doi:10.2305/IUCN.UK.2018-2.RLTS.T114177913A115546768.en. Retrieved 18 November 2021.
  2. Froese, Rainer; Pauly, Daniel (eds.) (2021). "Pogonoscorpius sechellensis" in FishBase. August 2021 version.
  3. Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Genera in the family Scorpaenidae". Catalog of Fishes. California Academy of Sciences. Retrieved 21 January 2022.
  4. Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Pogonoscorpius". Catalog of Fishes. California Academy of Sciences. Retrieved 21 January 2022.
  5. Regan, C. T. (1908). "Report on the marine fishes collected by Mr. J. Stanley Gardiner in the Indian Ocean". Transactions of the Linnean Society of London. 2nd Series. Zoology. 12 (3): 217–255. doi:10.1111/j.1096-3642.1908.tb00199.x.
  6. Christopher Scharpf & Kenneth J. Lazara, eds. (2 October 2021). "Order Perciformes (Part 9): Suborder Scorpaenoidei: Family Scorpaenidae". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 18 January 2022.
  7. Eschmeyer, W. N.; Y. Hirosaki; and T. Abe (1973). "Two new species of the scorpionfish genus Rhinopias, with comments on related genera and species". Proceedings of the California Academy of Sciences. Series 4. 39 (16): 285–310.
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