Biology:Long-tailed river stingray
| Long-tailed river stingray | |
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Chondrichthyes |
| Subclass: | Elasmobranchii |
| Superorder: | Batoidea |
| Order: | Myliobatiformes |
| Family: | Potamotrygonidae |
| Genus: | Plesiotrygon |
| Species: | P. iwamae
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| Binomial name | |
| Plesiotrygon iwamae R. de S. Rosa, Castello & Thorson, 1987
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The long-tailed river stingray or antenna ray (Plesiotrygon iwamae) is a species of freshwater stingray in the family Potamotrygonidae. It is found in the Amazon basin in South America, ranging from Ecuador to Belém.[1] It lives in the main channel of the Amazon River and lower parts of its major tributaries.[2]
Characteristic features are a very long filiform tail, reduced eyes, and a low number of pectoral-fin radials.[3] It resembles the black-tailed antenna ray (P. nana),[2] but is larger at up to 58 cm (1.90 ft) in disc width.[1]
Their prey includes worms, crustaceans, mollusks, and small bottom fish (such as small catfish).[1] They can detect electrical and chemical signals from prey in mud and sand.
The species was described in 1987 by Hugo P. Castello from Museu de Zoologia, University of São Paulo. Previously misidentified, or unidentified, specimens were then found in other museums.[3]
The fish is named in honor of the zoologist Satoko Iwama (d. 1987) of the Instituto de Botânica in São Paulo (Brazil).[4]
This fish occasionally appears in the aquarium trade and it has been bred in captivity, but the species is sensitive and the tail is easily damaged.[5][6]
References
- ↑ 1.0 1.1 1.2 Froese, Rainer and Pauly, Daniel, eds. (2011). "Plesiotrygon iwamae" in FishBase. June 2011 version.
- ↑ 2.0 2.1 De Carvalho, M.R.; M.P. Ragno (2011). "An unusual, dwarf species of Neotropical freshwater stingray, Plesiotrygon nana sp. nov., from the upper and mid Amazon basin: the second species of Plesiotrygon (Chondrichthyes: Potamotrygonidae)". Papéis Avulsos de Zoologia 51 (7): 101–138. doi:10.1590/S0031-10492011000700001.
- ↑ 3.0 3.1 Ricardo S. Rosa; Hugo P. Castello; Thomas B. Thorson (1987). "Plesiotrygon iwamae, a New Genus and Species of Neotropical Freshwater Stingray (Chondrichthyes: Potamotrygonidae)". Copeia 1987 (2): 447–458. doi:10.2307/1445783.
- ↑ "Order MYLIOBATIFORMES (Stingrays)". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. 22 September 2018. http://www.etyfish.org/myliobatiformes/.
- ↑ Reynolds; Hornbrook; Stettner; Terrell (2017). Smith. ed. Husbandry of freshwater stingrays. Special Publication of the Ohio Biological Survey. pp. 99–112. ISBN 978-0-86727-166-9.
- ↑ "Plesiotrygon iwamae" (in DE). Amazonas Rochen. http://amazonasrochen.ch/page/rochen/arten/antennen.htm. Retrieved 30 October 2017.
External links
Wikidata ☰ Q2716251 entry
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