Cyanogaster: Difference between revisions
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| binomial_authority = [[George Mendes Taliaferro Mattox|Mattox]], [[Ralf Britz|Britz]], [[Mônica de Toledo-Piza Ragazzo|Toledo-Piza]] & [[Manoela Maria Ferreira Marinho|Marinho]], 2013 |
| binomial_authority = [[George Mendes Taliaferro Mattox|Mattox]], [[Ralf Britz|Britz]], [[Mônica de Toledo-Piza Ragazzo|Toledo-Piza]] & [[Manoela Maria Ferreira Marinho|Marinho]], 2013 |
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'''''Cyanogaster noctivaga''''' is a [[species]] of [[Characidae|characin]] native to the [[Rio Negro (Amazon)|Rio Negro]], [[Brazil]].<ref name=Thomaz2015>{{cite journal | author = Thomaz A.T., Arcila D., Ortí G., Malabarba L.R. | year = 2015 | title = Molecular phylogeny of the subfamily Stevardiinae Gill, 1858 (Characiformes: Characidae): classification and the evolution of reproductive traits | url = | journal = BMC Evolutionary Biology | volume = 15 | issue = | page = 146 }}</ref> This species is the only known member of its [[genus]] and its scientific name translates as the blue-bellied night wanderer, referring to its unique appearance and nocturnal habits.<ref name=NHM/> It was [[Species description|first described]] in 2013, having been discovered in October 2011 on a scientific expedition organised by the [[University of São Paulo]], Brazil.<ref name=Mattox/> |
'''''Cyanogaster noctivaga''''' is a [[species]] of [[Characidae|characin]] native to the [[Rio Negro (Amazon)|Rio Negro]], [[Brazil]].<ref name=Thomaz2015>{{cite journal | author = Thomaz A.T., Arcila D., Ortí G., Malabarba L.R. | year = 2015 | title = Molecular phylogeny of the subfamily Stevardiinae Gill, 1858 (Characiformes: Characidae): classification and the evolution of reproductive traits | url = | journal = BMC Evolutionary Biology | volume = 15 | issue = | page = 146 | doi = 10.1186/s12862-015-0403-4 }}</ref> This species is the only known member of its [[genus]] and its scientific name translates as the blue-bellied night wanderer, referring to its unique appearance and nocturnal habits.<ref name=NHM/> It was [[Species description|first described]] in 2013, having been discovered in October 2011 on a scientific expedition organised by the [[University of São Paulo]], Brazil.<ref name=Mattox/> |
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==Description== |
==Description== |
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Revision as of 13:54, 25 January 2020
| Cyanogaster | |
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| Scientific classification | |
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| Genus: | Cyanogaster |
| Species: | C. noctivaga
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| Binomial name | |
| Cyanogaster noctivaga | |
Cyanogaster noctivaga is a species of characin native to the Rio Negro, Brazil.[1] This species is the only known member of its genus and its scientific name translates as the blue-bellied night wanderer, referring to its unique appearance and nocturnal habits.[2] It was first described in 2013, having been discovered in October 2011 on a scientific expedition organised by the University of São Paulo, Brazil.[3]
Description
When alive, Cyanogaster noctivaga is a transparent fish with a blue belly and reddish gill covers, but it quickly loses its bright colours after death. Its eyes are large, and the shape of its snout and its dentition differs from other characins, marking it out as a new genus. The longest specimen found was 17.4 mm (0.69 in) long.[2] It differs from other members of the subfamily Stevardiinae in having 8 dorsal-fin rays and four teeth in the inner premaxillary tooth series and i+5 pelvic-fin rays and the presence of a single conical tooth in the outer premaxillary tooth series. There are hooks on the rays of the pelvic and anal fins in mature males.[3]
Distribution and habitat
This fish is only known from a single location in the Rio Negro, but as it is a very small fish and seems to be entirely nocturnal, it is easily overlooked. It was found in an acidic backwater, a similar habitat to that of the smallest known species of fish, Paedocypris progenetica, which occurs in peaty forest swamps and blackwater streams in Asia.[2][4]
References
- ^ Thomaz A.T., Arcila D., Ortí G., Malabarba L.R. (2015). "Molecular phylogeny of the subfamily Stevardiinae Gill, 1858 (Characiformes: Characidae): classification and the evolution of reproductive traits". BMC Evolutionary Biology. 15: 146. doi:10.1186/s12862-015-0403-4.
{{cite journal}}: CS1 maint: multiple names: authors list (link) CS1 maint: unflagged free DOI (link) - ^ a b c "Blue-bellied fish is a surprise catch". Natural History Museum. 2013.
{{cite web}}: Cite uses deprecated parameter|authors=(help) - ^ a b "Cyanogaster noctivaga, a remarkable new genus and species of miniature fish from the Rio Negro, Amazon basin (Ostariophysi: Characidae)". Ichthyological Exploration of Freshwaters. 23 (4): 297–318. 2013.
{{cite journal}}: Cite uses deprecated parameter|authors=(help) - ^ "Paedocypris, a new genus of Southeast Asian cyprinid fish with a remarkable sexual dimorphism, comprises the world's smallest vertebrate" (PDF). Proceedings of the Royal Society B: Biological Sciences. 273: 895–899. 2005. doi:10.1098/rspb.2005.3419. PMC 1560243. PMID 16627273. Archived from the original (PDF) on 2009-07-12. Retrieved 2015-05-04.
{{cite journal}}: Cite uses deprecated parameter|authors=(help)
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