Flathead galaxias (New Zealand): Difference between revisions
GrahamBould (talk | contribs) moved Flathead galaxias to Flathead galaxias (Australia): To distinguish between the NZ Galaxias depressiceps, also called flathead galaxias. |
GrahamBould (talk | contribs) First edition |
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{{Taxobox | color = pink |
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| name = Flathead galaxias |
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| regnum = [[Animalia]] |
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| phylum = [[Chordata]] |
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| classis = [[Actinopterygii]] |
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| ordo = [[Osmeriformes]] |
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| familia = [[Galaxiidae]] |
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| subfamilia = [[Galaxiinae]] |
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| genus = ''[[Galaxias]]'' |
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| species = '''''G. depressiceps''''' |
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| binomial = ''Galaxias depressiceps'' |
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| binomial_authority = McDowall & Wallis, 1996 |
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}} |
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The '''flathead galaxias''' (''Galaxias depressiceps'') is a [[galaxiid]] of the [[genus]] ''[[Galaxias]]'', found primarily in the [[Taieri River]] catchment in [[Otago]], [[New Zealand]]. It grows to a length of up to 17 cm. |
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Flathead galaxias are speckled olive-green over a light brown base, often also with a golden stripe down the centre of the back to the [[dorsal fin]], and a golden belly. The single dorsal fin is rounded, and set back two thirds of the body length, the [[anal fin]] a little further back. The [[caudal fin]] is large and square. Like all galaxiids it lacks [[scale (zoology)|scale]]s and has a thick, leathery skin covered with [[mucus]]. |
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Flathead galaxias have 16 [[caudal fin]] rays compared to 15 and 14, respectively, in [[Eldons galaxias]] and [[dusky galaxias]]. |
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The preferred habitat for this species is cobble/boulder streams in tussock grasslands, and most populations occur above large waterfalls. Flathead galaxias are found at altitudes of 140-1,130 m in Otago, and they can live in steep mountain streams. |
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They are non-[[diadromous]] and therefore do not have a marine phase and are not part of the [[whitebait]] catch. |
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==References== |
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* {{FishBase species | genus = Galaxias | species = depressiceps | month = March | year = 2006}} |
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* [http://www.niwascience.co.nz/rc/freshwater/fishatlas/species/flathead_galaxias NIWA June 2006] |
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[[Category: Osmeriformes]] |
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[[Category: New Zealand fish]] |
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Revision as of 19:55, 5 June 2006
| Flathead galaxias | |
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| Species: | G. depressiceps
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| Binomial name | |
| Galaxias depressiceps McDowall & Wallis, 1996
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The flathead galaxias (Galaxias depressiceps) is a galaxiid of the genus Galaxias, found primarily in the Taieri River catchment in Otago, New Zealand. It grows to a length of up to 17 cm.
Flathead galaxias are speckled olive-green over a light brown base, often also with a golden stripe down the centre of the back to the dorsal fin, and a golden belly. The single dorsal fin is rounded, and set back two thirds of the body length, the anal fin a little further back. The caudal fin is large and square. Like all galaxiids it lacks scales and has a thick, leathery skin covered with mucus.
Flathead galaxias have 16 caudal fin rays compared to 15 and 14, respectively, in Eldons galaxias and dusky galaxias.
The preferred habitat for this species is cobble/boulder streams in tussock grasslands, and most populations occur above large waterfalls. Flathead galaxias are found at altitudes of 140-1,130 m in Otago, and they can live in steep mountain streams.
They are non-diadromous and therefore do not have a marine phase and are not part of the whitebait catch.
References
- Froese, Rainer; Pauly, Daniel (eds.). "Galaxias depressiceps". FishBase. March 2006 version.
- NIWA June 2006