Common shovelnose ray
| Common shovelnose ray | |
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| Species: | G. typus
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| Binomial name | |
| Glaucostegus typus[2] (Anonymous, referred to E. T. Bennett, 1830)
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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
- ^ a b c Kyne, P.M., Rigby, C.L., Dharmadi, Gutteridge, A.N. & Jabado, R.W. 2019. Glaucostegus typus. The IUCN Red List of Threatened Species 2019: e.T104061138A68623995. https://doi.org/10.2305/IUCN.UK.2019-2.RLTS.T104061138A68623995.en. Downloaded on 25 July 2019.
- ^ a b c Froese, Rainer; Pauly, Daniel (eds.) (2017). "Glaucostegus typus" in FishBase. July 2017 version.
- ^ a b c Last; White; de Carvalho; Séret; Stehmann; Naylor, eds. (2016). Rays of the World. CSIRO. p. 116. ISBN 9780643109148.
- ^ 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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