Maxillicosta

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Maxillicosta
The Victorian naturalist (1975) (14803512063).jpg
Maxillicosta scabriceps
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Scorpaeniformes
Family: Scorpaenidae
Subfamily: Neosebastinae
Genus: Maxillicosta
Whitley, 1935
Type species
Maxillicosta scabriceps
Whitley, 1935 [1]

Maxillicosta is a genus of marine ray-finned fishes, belonging to the subfamily Neosebastinae, the gurnard scorpionfishes, part of the family Scorpaenidae. They are native to the eastern Indian Ocean and the western Pacific Ocean.

Contents

Taxonomy

Maxillicosta was first described as a genus in 1935 by the Australian ichthyologist Gilbert Percy Whitley when he described M. scabriceps, with its type locality given as Kingscote on Kangaroo Island in South Australia, [2] as a monotypic genus but he also explicitly designated M scabriceps as its type species. [1] The name of the genus Maxillicosta was chosen by Whitley as the type species hade a scaleless maxilla crossed by five ridges, costa in contract to the scaled maxilla of Neosebastes . [3]

Species

There are currently six recognized species in this genus: [4]

Characteristics

Maxillicosta gurnard perches are small scorpaenid fishes that possess an expanded rear surface of the maxillary and the outer surface of the dentary has a number of clear, horizontal ridges. The maxillary, intraorbital and occipital areas of the head have no scales. They have 20-27 fin rays in the pectoral fins. Some of them do not have a swim bladder. [5] The smallest species is Whitley's gurnard perch which has a maximum total length of 7 cm (2.8 in) while the largest is the little gurnard perch which has a maximum total length of 12 cm (4.7 in). [4]

Distribution

Maxillicosta gurnard perches are found in the southwestern Pacific Ocean and southeastern Indian Ocean with one species, M. reticulata, found in the Desventuradas Islands and Juan Fernández Islands in the southeastern Pacific. [4]

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References

  1. 1 2 Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Genera in the family Neosebastidae". Catalog of Fishes . California Academy of Sciences . Retrieved 5 January 2022.
  2. Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Maxillicosta". Catalog of Fishes . California Academy of Sciences . Retrieved 5 January 2021.
  3. Christopher Scharpf & Kenneth J. Lazara, eds. (22 May 2021). "Order Perciformes (Part 8): Suborder Scorpaenoidei: Families Sebastidae, Setarchidae and Neosebastidae". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 5 January 2022.
  4. 1 2 3 Froese, Rainer and Pauly, Daniel, eds. (2021). Species of Maxillicosta in FishBase . August 2021 version.
  5. Bray, D.J. (2018). "Maxillicosta in Fishes of Australia". Museums Victoria. Retrieved 6 January 2022.