# Rasptooth dogfish

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{{Short description|Species of shark}}
{{Speciesbox
| name = Rasptooth dogfish
| status = LC | status_system = IUCN3.1
| image = 
| genus = Etmopterus
| species = sheikoi
| range_map = Miroscyllium sheikoi distmap.png
| range_map_caption = Range of the rasptooth dogfish (in blue)
| authority = ([Dolganov](/source/Vladimir_Nikolaevich_Dolganov), 1986)
|synonyms=''Centroscyllium sheikoi'' <small>Dolganov, 1986</small><br /> 
''Miroscyllium sheikoi'' <small>Dolganov, 1986</small>
|status_ref=<ref name="iucn status 18 November 2021">{{cite iucn |author=Rigby, C.L. |author2=Ebert, D.A. |author3=Herman, K. |date=2020 |title=''Etmopterus sheikoi'' |volume=2020 |article-number=e.T44564A124432563 |doi=10.2305/IUCN.UK.2020-3.RLTS.T44564A124432563.en |access-date=18 November 2021}}</ref>
}}
{{Portal|Sharks}}
The '''rasptooth dogfish''' ('''''Etmopterus sheikoi''''') is a [dogfish](/source/Squaliformes), found on the [Kyushu–Palau Ridge](/source/Kyushu%E2%80%93Palau_Ridge) in the northwest Pacific Ocean at depths of 360 m.<ref name=Fishbase>Bailly, N. (2014). [http://www.fishbase.de/summary/Miroscyllium-sheikoi.html ''Miroscyllium sheikoi'' (Dolganov, 1986).] ''In'': Froese, R. and D. Pauly. Editors. (2014) FishBase.</ref> Its maximum length is unknown.  This species was originally described as ''Centroscyllium sheikoi'',<ref>Dolganov, V. N. (1986) Description of new species of sharks of the family Squalidae (Squaliformes) from the north-western part of the Pacific Ocean with remarks of validity of ''Etmopterus frontimaculatus''. ''Zoologicheskii Zhurnal'' v. 65 (no. 1): 149-153.</ref> and subsequently allocated to the newly named genus ''Miroscyllium'' based on anatomical features not shared with other ''Centroscyllium''.<ref name=Shirai>Shirai, Shigeru & Nakaya, Kazuhiro (1990). [http://bionames.org/bionames-archive/issn/0892-8908/90/347.pdf Interrelationships of the Etmopterinae (Chondrichthyes, Squaliformes).] Elasmobranchs as Living Resources: Advances in the Biology, Ecology, Systematics, and the Status of the Fisheries, NOAA Tech. Rep. NMFS, 90, 347–356.</ref> More recent molecular data suggest this species belongs to the genus ''[Etmopterus](/source/Etmopterus)'',<ref name="Straube et al 2010">{{cite journal|last1=Straube|first1=Nicolas|last2=Iglésias|first2=Samuel P.|last3=Sellos|first3=Daniel Y.|last4=Kriwet|first4=Jürgen|last5=Schliewen|first5=Ulrich K.|title=Molecular phylogeny and node time estimation of bioluminescent Lantern Sharks (Elasmobranchii: Etmopteridae)|journal=Molecular Phylogenetics and Evolution|year=2010|volume=56|issue=3|pages=905–917|doi=10.1016/j.ympev.2010.04.042|pmid=20457263}}</ref><ref>{{cite journal|last1=STRAUBE|first1=NICOLAS|last2=WHITE|first2=WILLIAM T.|last3=HO|first3=HSUAN-CHING|last4=ROCHEL|first4=ELISABETH|last5=CORRIGAN|first5=SHANNON|last6=LI|first6=CHENHONG|last7=NAYLOR|first7=GAVIN J.P.|title=A DNA sequence-based identification checklist for Taiwanese chondrichthyans|journal=Zootaxa|year=2013|volume=3752|issue=1|page=256|doi=10.11646/zootaxa.3752.1.16|url=http://biotaxa.org/Zootaxa/article/view/zootaxa.3752.1.16/6167|doi-access=free}}</ref> but as of June 2014 ''Miroscyllium sheikoi'' remains the valid name recognized by [FishBase](/source/FishBase),<ref name=Fishbase/> the ''Catalog of Fishes''<ref>Eschmeyer, William (19 May 2014). [http://research.calacademy.org/redirect?url=http://researcharchive.calacademy.org/research/ichthyology/catalog/fishcatget.asp&tbl=species&spid=7885 ''Miroscyllium sheikoi'']. Catalog of Fishes. Retrieved 12 June 2014.</ref> [World Register of Marine Species](/source/World_Register_of_Marine_Species),<ref>Bailly, N. (2014). Miroscyllium sheikoi (Dolganov, 1986). In: Froese, R. and D. Pauly. Editors. (2014) FishBase. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=281580 on 2014-06-13</ref> and the [IUCN](/source/IUCN)<ref name="iucn status 18 November 2021" />

;Extinct ''Miroscyllium''
The genus name ''Miroscyllium'' was proposed in 1990 to encompass a single living species (now ''E. sheikoi'') and in 2006 was expanded to include fossil teeth of an extinct species (originally described as "?''Centroscyllium'' sp." in 1972) recovered from the [Miocene](/source/Miocene) (23.03–5.332 Ma) strata in [Vaucluse](/source/Vaucluse), southwestern France. The teeth of ''Miroscyllium'' (''[sensu lato](/source/sensu_lato)'') are similar to those of ''Etmopterus'', but differ in having multiple cusps on the tooth crowns ("multicuspidate crowns").<ref name=Adnetetal2006>Adnet, S, Capetti, H., and Nakaya, K. [https://www.researchgate.net/publication/258255310_Dentition_of_etmopterid_shark_Miroscyllium_(Squaliformes)_with_comments_on_the_fossil_record_of_lanternsharks "Dentition of Etmopterid Shark Miroscyllium (Squalifomes) with comments on the fossil record of lantern sharks."] ''Cybium'', 2006.</ref>

==References==
{{Reflist}}

{{Selachimorpha|D.}}
{{Taxonbar|from=Q1635240}}

{{DEFAULTSORT:Rasptooth dogfish}}
Category:Etmopterus
Category:Fish described in 1986

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Adapted from the Wikipedia article [Rasptooth dogfish](https://en.wikipedia.org/wiki/Rasptooth_dogfish) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Rasptooth_dogfish?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.