Thinlip splitfin

The thinlip splitfin (Kaperangus microlepis) is a species of fish in the family Acropomatidae, the lanternbellies. It lives around Africa's Atlantic coast at a depth of 50–500 m and can grow up to 16.5 cm long.[1]

Thinlip splitfin[1]

Least Concern  (IUCN 3.1)[2]
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Perciformes
Family: Acropomatidae
Genus: Kaperangus
Schwarzhans & Prokofiev, 2017[3]
Species:
K. microlepis
Binomial name
Kaperangus microlepis
(Norman, 1935)
Synonyms[1]

Synagrops microlepis Norman, 1935

Distribution

The thinlip splitfin can be found in the Eastern Atlantic from Mauritania to Namibia,[1] including the Cape Verde Islands.[2]

Description

The thinlip splitfin is dark brownish above and paler below. It has 10 dorsal spines, 9 dorsal soft rays, 2 anal spines, and 9 anal soft rays.[1] It attains a maximum size of 18 centimetres (7.1 in) total length , reaching sexual maturity at a total length of 10 centimetres (3.9 in).

Habitat and biology

The thinlip splitfin is a bathypelagic fish which occurs near muddy bottoms[1] at depths of 70–1,000 metres (230–3,280 ft).[2] It is a predator of crustaceans such as euphasiids, mysids and decapods[1] as well as fish and cephalopods. The species from the family Acropomatidae form loose aggregations normally near the bottom and some of them undertake a nocturnal migration towards the surface of the sea. The highest biomass density was recorded during a survey using a bottom trawl over the upper continental slope off of Angola. It is known to be an important component of the diet of the hake Merluccius senegalensis in the waters off of Dakar.[2]

Taxonomy

Kaperangus microlepis was originally formally described in 1935 as Synagrops microlepis by the British ichthyologist John Roxborough Norman (1898-1944) with the type locality given as "Off St. Paul de Loanda, Angola".[3] In 2017 it was placed in the monotypic genus Kaperangus.[4]

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References
  1. Froese, Rainer and Pauly, Daniel, eds. (2020). "Kaperangus microlepis" in FishBase. December 2020 version.
  2. Gon, O. & Iwamoto, T. (2015). "Synagrops microlepis". IUCN Red List of Threatened Species. 2015: e.T13458375A13462786. doi:10.2305/IUCN.UK.2015-4.RLTS.T13458375A13462786.en. Retrieved 29 February 2020.
  3. Eschmeyer, W. N.; R. Fricke & R. van der Laan (eds.). "Synagrops microlepis". Catalog of Fishes. California Academy of Sciences. Retrieved 29 February 2020.
  4. Werner W. Schwarzhans & Artem M. Prokofiev (2017). "Reappraisal of Synagrops Günther, 1887 with rehabilitation and revision of Parascombrops Alcock, 1889 including description of seven new species and two new genera (Perciformes: Acropomatidae)". Zootaxa. 4260 (1). doi:10.11646/zootaxa.4260.1.1.
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