Biology:Rhizosomichthys totae
| Rhizosomichthys totae | |
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| artist's restoration of the living animal | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Siluriformes |
| Family: | Trichomycteridae |
| Subfamily: | Trichomycterinae |
| Genus: | Rhizosomichthys Miles, 1943 |
| Species: | R. totae
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| Binomial name | |
| Rhizosomichthys totae (Miles, 1942)
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| Synonyms | |
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Of Rhizosomichthys
Of Rhizosomichthys totae
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Rhizosomichthys totae (sometimes known as Greasefish[2] in English) is a species of catfish (order Siluriformes) of the family Trichomycteridae, and the only species of the genus Rhizosomichthys.[3] This fish grew to about 13.8 centimetres (5.4 in) and was endemic to Colombia where it occurred in the Lake Tota basin.[4] It is listed as a critically endangered (possibly extinct) species by the IUCN Red List.[1] The species was last seen in 1957, and only 10 specimens were ever found. The disappearance is possibly linked to the release of 100,000 imported rainbow trout eggs into Lake Tota in 1936. [5]
Specimens of R. totae are described as having 8 rings of connective fat encircling the body and two large sections of fat tissue on the posterior part of the back and head. No other trichomycterid has comparable organization of adipose tissue. [6]
This species is listed on Re:wild’s top 25 most wanted lost species and currently a search using Environmental DNA (eDNA) by the organization of SHOAL to hopefully find this species.[7][8]
References
- ↑ 1.0 1.1 Mesa-Salazar, L.; Mojica, J. (2016). "Rhizosomichthys totae". IUCN Red List of Threatened Species 2016: e.T19661A61472482. doi:10.2305/IUCN.UK.2016-1.RLTS.T19661A61472482.en. https://www.iucnredlist.org/species/19661/61472482. Retrieved 13 November 2021.
- ↑ Gene S. Helfman: Fish Conservation: A Guide to Understanding and Restoring Global Aquatic Biodiversity and Fishery Resources Island Press, 2007 ISBN:1-55963-596-7
- ↑ Ferraris, Carl J. Jr. (2007). "Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types". Zootaxa 1418: 1–628. doi:10.11646/zootaxa.1418.1.1. http://silurus.acnatsci.org/ACSI/library/biblios/2007_Ferraris_Catfish_Checklist.pdf.
- ↑ Froese, Rainer and Pauly, Daniel, eds. (2012). "Rhizosomichthys totae" in FishBase. February 2012 version.
- ↑ Press, The Planetary (2021-06-17). "New Campaign Aims to Rediscover Lost Fish Around the Globe" (in en-US). https://www.theplanetarypress.com/2021/06/new-campaign-aims-to-rediscover-lost-fish-around-the-globe/.
- ↑ Schaefer, Scott A.; Fernández, Luis (2009-09-03). "Redescription of the Pez Graso, Rhizosomichthys totae (Trichomycteridae), of Lago de Tota, Colombia, and Aspects of Cranial Osteology Revealed by Microtomography" (in en). Copeia 2009 (3): 510–522. doi:10.1643/CI-08-186. ISSN 0045-8511. http://www.bioone.org/doi/abs/10.1643/CI-08-186.
- ↑ "https://twitter.com/Shoal_Org/status/1707312522745786439" (in en). https://twitter.com/Shoal_Org/status/1707312522745786439.
- ↑ "Re:wild's Search for Lost Species" (in en). http://www.rewild.org/lost-species/top-25-most-wanted-lost-species.
Wikidata ☰ Q145381 entry
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