Common shovelnose ray

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Common shovelnose ray
The Lazy Afternoon.jpg

Critically Endangered (IUCN 3.1)[1]
Scientific classification
Kingdom:
Animalia
Phylum:
Chordata
Class:
Chondrichthyes
Order:
Rhinopristiformes
Family:
Glaucostegidae
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. ^ a b c Kyne, P.M.; Rigby, C.L.; Dharmadi, Gutteridge, A.N.; Jabado, R.W. (2019). "Glaucostegus typus". IUCN Red List of Threatened Species. 2019: e.T104061138A68623995. doi:10.2305/IUCN.UK.2019-2.RLTS.T104061138A68623995.en. Retrieved 16 November 2021.CS1 maint: multiple names: authors list (link)
  2. ^ a b c Froese, Rainer; Pauly, Daniel (eds.) (2017). "Glaucostegus typus" in FishBase. July 2017 version.
  3. ^ a b c Last; White; de Carvalho; Séret; Stehmann; 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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