Ocosia

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Ocosia
FMIB 41121 Ocosia vespa Jordan & Starks.jpeg
Ocosia vespa
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Scorpaeniformes
Family: Scorpaenidae
Subfamily: Tetraroginae
Genus: Ocosia
D. S. Jordan & Starks, 1904
Type species
Ocosia vespa
Jordan & Starks, 1904 [1]

Ocosia is a genus of ray-finned fishes, waspfishes belonging to the subfamily Tetraroginae, which is classified as part of the family Scorpaenidae, the scorpionfishes and their relatives. These fish are found in the Indian Ocean and western Pacific Ocean.

Contents

Taxonomy

Ocosia was originally described as a monotypic genus in 1904 by the American ichthyologists David Starr Jordan and Edwin Chapin Starks when they were describing Ocosia vespa as a new species with its type locality given as Sagami Bay in Japan. [1] This taxon is included in the subfamily Tetraroginae within the Scorpaenidae in the 5th edition of Fishes of the World [2] however other authorities place that subfamily within the stonefish family Synanceiidae, [1] while other authorities classify this subfamily as a family in its own right. [3] The genus name Ocosia is a latinisation of the Japanese word for venomous fishes in the Scorpaeniformes, okoze. [4]

Species

There are currently 9 recognized species in this genus: [3]

Characteristics

Ocosia waspfishes are characterised by having naked bodies with scales being largely absent. They have a single spine and 5 soft rays in the pelvic fin. There are teeth on the palatine. The origin of the dorsal fin is in front of the rear of the orbit and there are between 14 and 17 spines in that fin. They have a straight, oblique dorsal profile of the head with no tentacles. The lateral line is clearly separated from the base of the dorsal fin and the uppermost part of the operculum does not extend as far as the base of the dorsal fin. They do not have papillae on the head and body. [6] These are small fishes and the largest species, O. ramaraoi reaches a maximum standard length of 8.2 cm (3.2 in). [3]

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References

  1. 1 2 3 Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Genera in the family Tetraroginae". Catalog of Fishes . California Academy of Sciences . Retrieved 25 March 2022.
  2. ↑ 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.
  3. 1 2 3 Froese, Rainer and Pauly, Daniel, eds. (2022). Species of Ocosia in FishBase . February 2022 version.
  4. ↑ 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 26 March 2022.
  5. ↑ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Ocosia". Catalog of Fishes . California Academy of Sciences . Retrieved 25 March 2022.
  6. ↑ Sirikanya Chungthanawong; Hiroyuki Motomura (2021). "Review of the waspfish genus Neocentropogon (Tetrarogidae), with a key to genera in the family". Ichthyological Research. 68: 404–425. doi:10.1007/s10228-020-00796-w.
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