Rasptooth_dogfish

Rasptooth dogfish

Rasptooth dogfish

Species of shark

Quick Facts Conservation status, Scientific classification ...

The rasptooth dogfish (Etmopterus sheikoi) is a dogfish, found on the Kyushu–Palau Ridge in the northwest Pacific Ocean at depths of 360 m.[2] Its maximum length is unknown. This species was originally described as Centroscyllium sheikoi,[3] and subsequently allocated to the newly named genus Miroscyllium based on anatomical features not shared with other Centroscyllium.[4] More recent molecular data suggest this species belongs to the genus Etmopterus,[5][6] but as of June 2014 Miroscyllium sheikoi remains the valid name recognized by FishBase,[2] the Catalog of Fishes[7] World Register of Marine Species,[8] and the IUCN[1]

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 (23.03–5.332 Ma) strata in Vaucluse, southwestern France. The teeth of Miroscyllium (sensu lato) are similar to those of Etmopterus, but differ in having multiple cusps on the tooth crowns ("multicuspidate crowns").[9]

References

  1. [1]
    Rigby, C.L.; Ebert, D.A.; Herman, K. (2020). "Etmopterus sheikoi". IUCN Red List of Threatened Species. 2020: e.T44564A124432563. doi:10.2305/IUCN.UK.2020-3.RLTS.T44564A124432563.en. Retrieved 18 November 2021.
  2. [2]
    Bailly, N. (2014). Miroscyllium sheikoi (Dolganov, 1986). In: Froese, R. and D. Pauly. Editors. (2014) FishBase.
  3. [3]
    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.
  4. [4]
    Shirai, Shigeru & Nakaya, Kazuhiro (1990). 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.
  5. [5]
    Straube, Nicolas; Iglésias, Samuel P.; Sellos, Daniel Y.; Kriwet, Jürgen; Schliewen, Ulrich K. (2010). "Molecular phylogeny and node time estimation of bioluminescent Lantern Sharks (Elasmobranchii: Etmopteridae)". Molecular Phylogenetics and Evolution. 56 (3): 905–917. doi:10.1016/j.ympev.2010.04.042. PMID 20457263.
  6. [6]
    STRAUBE, NICOLAS; WHITE, WILLIAM T.; HO, HSUAN-CHING; ROCHEL, ELISABETH; CORRIGAN, SHANNON; LI, CHENHONG; NAYLOR, GAVIN J.P. (2013). "A DNA sequence-based identification checklist for Taiwanese chondrichthyans". Zootaxa. 3752 (1): 256. doi:10.11646/zootaxa.3752.1.16.
  7. [7]
    Eschmeyer, William (19 May 2014). Miroscyllium sheikoi. Catalog of Fishes. Retrieved 12 June 2014.
  8. [8]
    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
  9. [9]
    Adnet, S, Capetti, H., and Nakaya, K. "Dentition of Etmopterid Shark Miroscyllium (Squalifomes) with comments on the fossil record of lantern sharks." Cybium, 2006.
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