| 词条 | Common shovelnose ray |
| 释义 |
| name = Common shovelnose ray | image = Glaucostegus typus.jpg | status = VU | status_system = IUCN3.1 | status_ref = [1] | regnum = Animalia | phylum = Chordata | classis = Chondrichthyes | ordo = Rajiformes | familia = Rhinobatidae | genus = Glaucostegus | species = G. typus | binomial = Glaucostegus typus[2] | binomial_authority = (Anonymous, referred to E. T. Bennett, 1830) | synonyms = }} 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 {{convert|100|m|ft|abbr=on}}, including mangrove, estuaries and reportedly also in freshwaters.[1][2][3] It reaches up to {{convert|2.7|m|ft|abbr=on}} 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] References1. ^1 2 White, W.T. & McAuley, R.B. 2016. Glaucostegus typus. The IUCN Red List of Threatened Species 2016: e.T41849A104018648. https://dx.doi.org/10.2305/IUCN.UK.2016-3.RLTS.T41849A104018648.en. Downloaded on 31 August 2018. {{Taxonbar|from=Q3316458}}{{DEFAULTSORT:ray, shovelnose, common}}{{Rajiformes-stub}}2. ^1 2 {{FishBase |genus= Glaucostegus |species= typus | month = July| year = 2017}} 3. ^1 2 {{cite book| editors=Last; White; de Carvalho; Séret; Stehmann; and Naylor | title=Rays of the World | year=2016 | publisher=CSIRO | pages=116 | isbn=9780643109148 }} 4. ^{{cite journal |last1= Van-Eyk |first1= S. M. |last2= Siebeck |first2= U. E. |last3=Champ |first3=C. M. |last4=Marshall |first4=J. |last5=Hart |first5= N. S.|year=2011 |title= Behavioural evidence for colour vision in an elasmobranch |journal=The Journal of Experimental Biology |volume=214 |issue=24 |pages=4186–4192 |publisher= |doi=10.1242/jeb.061853|url= http://espace.library.uq.edu.au/view/UQ:264283/UQ264283_OA.pdf|accessdate= |pmid=22116761}} 3 : Glaucostegidae|Fish described in 1830|Taxonomy articles created by Polbot |
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