Glaucostegus

Glaucostegus, also known as giant guitarfishes, is a genus of large Indo-Pacific rays, with a single species, Glaucostegus cemiculus, in the East Atlantic, and Mediterranean.[1] They were formerly classified in the family Rhinobatidae but are now recognized as a distinct family, Glaucostegidae.[2]

Glaucostegus
Giant guitarfish (G. typus)
Scientific classification
Kingdom:
Animalia
Phylum:
Chordata
Class:
Chondrichthyes
Subclass:
Elasmobranchii
Order:
Rhinopristiformes
Family:
Glaucostegidae

Last, Séret & Naylor, 2016
Genus:
Glaucostegus

Bonaparte, 1846

Their upperparts are uniform pale yellowish, brownish or greyish, and the nose is pale. Most are large, reaching 1.7–3 m (5.6–9.8 ft) in length depending on the exact species involved, except for the small G. obtusus that is less than 1 m (3.3 ft).[1]

Species

There are six recognized species, all of which are classified as critically endangered:[2][3]

  • Glaucostegus cemiculus (Geoffroy St. Hilaire, 1817) (Blackchin guitarfish)
  • Glaucostegus granulatus Cuvier, 1829 (Sharpnose guitarfish)
  • Glaucostegus halavi Forsskål, 1775 (Halavi guitarfish)
  • Glaucostegus obtusus (Müller & Henle, 1841) (Widenose guitarfish)
  • Glaucostegus thouin (Anonymous, 1798) (Clubnose guitarfish)
  • Glaucostegus typus (E. T. Bennett, 1830) (Giant guitarfish)
gollark: Submit electromagnetism for analysis then?!
gollark: By "just" I mean "several hours ago".
gollark: In any case, I just skimmed an article on implementation of an 802.11 PHY on a SDR/FPGA thingy, so I can tell you it probably does have to transmit things somewhat.
gollark: It exists.
gollark: Yes, it would have to transmit wireless packets.

References
  1. Last; White; de Carvalho; Séret; Stehmann; Naylor, eds. (2016). Rays of the World. CSIRO. pp. 110–116. ISBN 9780643109148.
  2. Last, P.R.; Séret, B.; Naylor, G.J.P. (2016). "A new species of guitarfish, Rhinobatos borneensis sp. nov. with a redefinition of the family-level classification in the order Rhinopristiformes (Chondrichthyes: Batoidea)". Zootaxa. 4117 (4): 451–475. doi:10.11646/zootaxa.4117.4.1. PMID 27395187.
  3. Froese, Rainer and Pauly, Daniel, eds. (2017). Species of Glaucostegus in FishBase. July 2017 version.


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.