Lasiognathus dinema is a species of marine ray-finned fish belonging to the family Thaumatichthyidae, the wolftrap anglers. This species is known only from the northern Gulf of Mexico.
| Lasiognathus dinema | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Lophiiformes |
| Family: | Thaumatichthyidae |
| Genus: | Lasiognathus |
| Species: | L. dinema
|
| Binomial name | |
| Lasiognathus dinema | |
Taxonomy
editLasiognathus dinema was first formally described in 2015 by Theodore Wells Pietsch III and Tracey T. Sutton with its type locality given as the northern Gulf of Mexico at 27.5°N, 88.5°W from a depth between 0 and 1,271 m (0 and 4,170 ft), where the seabed was at 2,104 m (6,903 ft).[2] This species belongs to the genus Lasiognathus which the 5th edition of Fishes of the World classifies within the family Thaumatichthyidae, within the suborder Ceratioidei of the anglerfish order Lophiiformes.[3]
Etymology
editLasiognathus dinema is a member of the genus Lasiognathus, this name is a combination of lasios, meaning "bearded", and gnathus, which means "jaw". This may be a reference to the many long teeth in the upper jaw, goving the appearance of a beard. The specific name, dinema, means "two threads" , an allusion to te two elongated filaments that emerge from the bases of the hooks on the escal bulb.[4]
Description
editLasiognathus dinema is distinguished from its congeners by the morphology of the esca. This species has an esca which has a cylindrical front appendage with internal pigmentation and a pair of elongated appendages at the tip of the esca.[5] This species has a maximum published standard length of 9.5 cm (3.7 in).[6]
Distribution and habitat
editLasiognathus dinema is known from a single location in the northern Gulf of Mexico within a radius of 250 m (820 ft) of the Macondo wellhead where it has been collected from depths between 800 and 1,271 m (2,625 and 4,170 ft).
Conservation status
editLasiognathus dinema is known from only three specimens are known, all collected in 2011. The type locality is close to the location of the Deepwater Horizon oil spill and the population, range and biology of this species are little know, leading the International Union for Conservation of Nature to classift this species as Data deficient.[1]
References
edit- ^ a b Carpenter, K.E.; Robertson, R.; Matson, C. & Rivera Higueras, M. (2019). "Lasiognathus dinema". IUCN Red List of Threatened Species. 2019: e.T140349925A140859153. doi:10.2305/IUCN.UK.2019-3.RLTS.T140349925A140859153.en. Retrieved 30 July 2024.
- ^ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Lasiognathus". Catalog of Fishes. California Academy of Sciences. Retrieved 1 August 2024.
- ^ Nelson, J.S.; Grande, T.C.; Wilson, M.V.H. (2016). Fishes of the World (5th ed.). Hoboken, NJ: John Wiley & Sons. pp. 508–518. doi:10.1002/9781119174844. ISBN 978-1-118-34233-6. LCCN 2015037522. OCLC 951899884. OL 25909650M.
- ^ Christopher Scharpf (3 June 2024). "Order LOPHIIFORMES (part 2): Families CAULOPHRYNIDAE, NEOCERATIIDAE, MELANOCETIDAE, HIMANTOLOPHIDAE, DICERATIIDAE, ONEIRODIDAE, THAUMATICHTHYIDAE, CENTROPHRYNIDAE, CERATIIDAE, GIGANTACTINIDAE and LINOPHRYNIDAE". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf. Retrieved 1 August 2024.
- ^ Sutton, Tracey T.; Pietsch, Theodore W. (June 2015). "A New Species of the Ceratioid Anglerfish Genus Lasiognathus Regan (Lophiiformes: Oneirodidae) from the Northern Gulf of Mexico". Copeia. 103 (2): 429–432. doi:10.1643/CI-14-181. ISSN 0045-8511. S2CID 85885506.
- ^ Froese, Rainer; Pauly, Daniel (eds.) (2024). "Lasiognathus dinema" in FishBase. June 2024 version.