Multipore searsid

Multipore searsid
Conservation status
Least Concern  (IUCN 3.1)[1]
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Alepocephaliformes
Family:	Platytroctidae
Genus:	Normichthys
Species:	N. operosus
Binomial name
Normichthys operosus (Parr, 1951)
Synonyms[2]
Normichthys operosa Parr, 1951 Normichthys operosa islandica Parr, 1960

The multipore searsid (Normichthys operosus) is a species of fish in the family Platytroctidae (tubeshoulders).[3][4][5]

Name

Its scientific name is from the Latin operōsus, "busy, hardworking".[6]

Its common name "multipore" refers to the dermal pits located behind its shoulders, and "searsid" is a name used for fish that resemble Searsia koefoedi.[7]

Description

The multipore searsid is maximum 16.4 cm (6.5 in) long and is black or dark brown in colour.[8][9] Its body is deep and compressed, its head about one-third of body length. It has a simple lateral line and few or no photophores. It has two to four large, and several smaller, open dermal pits behind the upper part of shoulder girdle, with usually at least one pit twice as wide as body scales; these give it the name "multipore."[10][11]

Habitat

The multipore searsid is bathypelagic, living in Atlantic Ocean at depths of 780–5,000 m (2,560–16,400 ft), but rarely going below 1,000 m (3,300 ft), following a 4 °C (39 °F) isotherm and being found near seamounts.[12][13] It is most concentrated in the waters southwest of Ireland.[14]

References

1. Academy), Tomio Iwamoto (Cal (July 15, 2014). "IUCN Red List of Threatened Species: Normichthys operosus". IUCN Red List of Threatened Species – via www.iucnredlist.org.
2. "WoRMS - World Register of Marine Species - Normichthys operosus Parr, 1951". www.marinespecies.org.
3. Coad, Brian W.; Reist, James D. (January 1, 2018). Marine Fishes of Arctic Canada. University of Toronto Press. ISBN 9781442647107 – via Google Books.
4. Ramos, Ana; Ramil, Fran; Sanz, José Luis (September 25, 2017). Deep-Sea Ecosystems Off Mauritania: Research of Marine Biodiversity and Habitats in the Northwest African Margin. Springer. ISBN 9789402410235 – via Google Books.
5. Morgan, M. D. (December 6, 2012). Ecology of Mysidacea. Springer Science & Business Media. ISBN 9789400980129 – via Google Books.
6. "Order ALEPOCEPHALIFORMES (Slickheads)". December 29, 2016.
7. "Normichthys operosus - Multipore Searsid". Discover Life. Retrieved 2022-08-25.
8. "Normichthys operosus (Multipore searsid)". www.descna.com.
9. "WoRMS - World Register of Marine Species - Normichthys operosus Parr, 1951". www.marinespecies.org.
10. Nations, Food and Agriculture Organization of the United (August 1, 2020). Identification guide to the mesopelagic fishes of the central and south east Atlantic Ocean. Food & Agriculture Org. ISBN 9789251330944 – via Google Books.
11. "Marine Species Identification Portal : Multipore searsid - Normichthys operosus". species-identification.org.
12. "Normichthys operosus, Multipore searsid". www.fishbase.se.
13. Pitcher, Tony J.; Morato, Telmo; Hart, Paul J. B.; Clark, Malcolm R.; Haggan, Nigel; Santos, Ricardo S. (April 15, 2008). Seamounts: Ecology, Fisheries and Conservation. John Wiley & Sons. ISBN 9780470691267 – via Google Books.
14. "Normichthys operosus Parr, 1951". www.gbif.org.