Common shovelnose ray

Common shovelnose ray
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Order: Rajiformes
Family: Rhinobatidae
Genus: Glaucostegus
Species: G. typus
Binomial name
Glaucostegus typus[2]
(Anonymous, referred to E. T. Bennett, 1830)

The common shovelnose ray, giant shovelnose ray or giant guitarfish (Glaucostegus typus) is a species of fish in the Rhinobatidae family found in the central Indo-Pacific, ranging from India to the East China Sea, Solomon Islands and northern Australia.[1][2][3] It is found in shallow coastal areas to a depth of at least 100 m (330 ft), including mangrove, estuaries and reportedly also in freshwaters.[1][2][3] It reaches up to 2.7 m (8.9 ft) in length, and is greyish-brown to yellowish-brown above with a paler snout.[3]

This species has been tested for colour vision using choice experiments that control for brightness. It was the first rigorous behvioural evidence for colour vision in any elasmobranch.[4]

References

  1. 1 2 3 White, W.T. & McAuley, R.B. 2016. Glaucostegus typus. The IUCN Red List of Threatened Species 2016: e.T41849A104018648. http://dx.doi.org/10.2305/IUCN.UK.2016-3.RLTS.T41849A104018648.en. Downloaded on 31 August 2018.
  2. 1 2 3 Froese, Rainer and Pauly, Daniel, eds. (2017). "Glaucostegus typus" in FishBase. July 2017 version.
  3. 1 2 3 Last; White; de Carvalho; Séret; Stehmann; and Naylor, eds. (2016). Rays of the World. CSIRO. p. 116. ISBN 9780643109148.
  4. ↑ Van-Eyk, S. M.; Siebeck, U. E.; Champ, C. M.; Marshall, J.; Hart, N. S. (2011). "Behavioural evidence for colour vision in an elasmobranch" (PDF). The Journal of Experimental Biology. 214 (24): 4186–4192. doi:10.1242/jeb.061853. PMID 22116761.


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