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Listrura

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Listrura is a genus of pencil catfishes native to South America.

Taxonomy

Listrura was first described in 1988 for two species from southeastern Brazil, the first record of the subfamily Glanapteryginae outside of the Amazon River basin.[1] It was described for the species L. nematopteryx and L. camposi; L. camposi had been assigned to the genus Eremophilus, while L. nematopteryx had been misidentified as another species of Eremophilus.[2] L. tetraradiata was described in 2002 from the Rio de Janeiro State in Brazil.[2] L. boticario was described later in 2002 from southern Brazil.[1] L. picinguabae was described in 2006.[3] This genus is currently monophyletic.[1]

With the description of L. tetraradiata in 2003, it was hypothesized that L. tetraradiata possibly constitutes the sister group to a clade comprising the only other two previously described species of Listrura, L. camposi and L. nematopteryx.[2] As of 2006, two species of Listrura, L. camposi and L. boticario, were known only from their holotypes. The lack of osteological information for these species impedes a complete analysis of phylogenetic relationships within the genus. It was hypothesized that L. nematopteryx and L. picinguabae comprise a monophyletic assemblage, given the fact that the pectoral fin of these species consists of a single ray and the ray is in the form of a long filament, a condition not present in any other trichomycterids thus far described.[3]

Listura is the most basal member of the subfamily Glanapteryginae; it is sister to a clade formed by the other three genera, Glanapteryx, Pygidianops, and Typhlobelus.[1]

Species

There are currently nine recognized species in this genus:

Distribution

Listrura is endemic to small coastal river basins of southeastern Brazil.[2] L. boticario originates from Da Figueira and Guaraqueçaba River basins, Paraná State. L. camposi inhabits the Poço Grande River, a tributary of the Juquiá River in the São Paulo State, and Ribeirão da Ilha of Florianópolis in Santa Catarina State. L. nematopteryx is distributed in the Imbariê Creek and basin of the Estrela River system of Piabetá in the Rio de Janeiro State, and Picinguaba in the São Paulo State.[7] L. picinguabae is only known from small tributaries to the da Fazenda River in the São Paulo State.[3] L. tetraradiata is from the Ibicuíba River of the Araruama Lagoon system.[7]

Description

The body is elongate and may be cylindrical. These fish have three pairs of barbels. The mouth is subterminal. These fish are lacking in pelvic fins. The caudal fin is rounded. The caudal skeleton is compact and fused.[3][2] Listura species grow to about 3.7–4.9 centimetres (1.5–1.9 in) SL.[8][9][10][11][12]

Ecology

Listrura occur in shallow-water leaf-litter deposits underlain by mud or deeper layers of leaf litter. Listrura inhabits extremely small, shallow, and temporary water bodies, marginal to main water courses covered with vegetation; no species of Listrura is known to occur in creeks or rivers, except apparently as stray or colonizing specimens.[1] L. picinguabae inhabits narrow and shallow (about 20 cm or 12 in deep) streams in dense tropical forest; it is encountered buried in the litter bottom.[3] L. tetraradiata has been found in small, clear water forest streams; these habitats are shallow (about 40 cm or 16 in deep), with large rocks on the banks and gravel and sand on the bottom. L. tetraradiata has been found to have copepods, insect larvae, and mites in their stomach contents.[2]

References

  1. ^ a b c d e Schaefer, Scott A.; Provenzano, Francisco; de Pinna, Mario; Baskin, Jonathan N. (November 29, 2005). "New and Noteworthy Venezuelan Glanapterygine Catfishes (Siluriformes, Trichomycteridae), with Discussion of Their Biogeography and Psammophily" (PDF). American Museum Novitates (3496): 1–27. doi:10.1206/0003-0082(2005)496[0001:NANVGC]2.0.CO;2. S2CID 19506818. Retrieved 2009-06-25.
  2. ^ a b c d e f Landim, Maria Isabel; Costa, Wilson J. E. M. (2002). Schaefer, S. A. (ed.). "Listrura tetraradiata (Siluriformes: Trichomycteridae): A New Glanapterygine Catfish from the Southeastern Brazilian Coastal Plains". Copeia. 2002 (1): 152–156. doi:10.1643/0045-8511(2002)002[0152:LTSTAN]2.0.CO;2. S2CID 85726711.
  3. ^ a b c d e Villa-Verde, Leandro; Costa, Wilson J. E. M. (2006). "A new glanapterygine catfish of the genus Listrura (Siluriformes: Trichomycteridae) from the southeastern Brazilian coastal plains" (PDF). Zootaxa. 1142: 43–50. doi:10.11646/zootaxa.1142.1.3. Retrieved 2009-06-25.
  4. ^ Villa-Verde, L., Lazzarotto, H. & Lima, S.M.Q. (2012): A new glanapterygine catfish of the genus Listrura (Siluriformes: Trichomycteridae) from southeastern Brazil, corroborated by morphological and molecular data. Neotropical Ichthyology, 10 (3): 527-538.
  5. ^ Villa-Verde, L., Ferrer, J. & Malabarba, L.R. (2014): A New Species of Listrura from Laguna dos Patos System, Brazil: The Southernmost Record of the Glanapteryginae (Siluriformes: Trichomycteridae). Copeia, 2013 (4) [2014]: 641-646.
  6. ^ a b Costa, W.J.E.M., & Katz, A. M. (2021): Comparative morphology, phylogeny, classification and evolution of interstitial habits in microcambevine catfishes (Siluriformes: Trichomycteridae). Taxonomy, 1(4) [2021]: 313-344.
  7. ^ a b Ferraris, Carl J., Jr. (2007). "Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types" (PDF). Zootaxa. 1418: 1–628. doi:10.11646/zootaxa.1418.1.1. Retrieved 2009-06-25.
  8. ^ Froese, Rainer; Pauly, Daniel (eds.) (2007). "Listrura boticario" in FishBase. July 2007 version.
  9. ^ Froese, Rainer; Pauly, Daniel (eds.) (2007). "Listrura camposi" in FishBase. July 2007 version.
  10. ^ Froese, Rainer; Pauly, Daniel (eds.) (2007). "Listrura nematopteryx" in FishBase. July 2007 version.
  11. ^ Froese, Rainer; Pauly, Daniel (eds.) (2007). "Listrura picinguabae" in FishBase. July 2007 version.
  12. ^ Froese, Rainer; Pauly, Daniel (eds.) (2007). "Listrura tetraradiata" in FishBase. July 2007 version.
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Listrura: Brief Summary

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Listrura is a genus of pencil catfishes native to South America.

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Listrura ( Spanish; Castilian )

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Listrura es un género de peces de la familia Trichomycteridae en el orden de los Siluriformes.

Especies

Las especies de este género son:[1]

Referencias

  1. Especies de "Listrura". En FishBase. (Rainer Froese y Daniel Pauly, eds.). Consultada en septiembre de 2017. N.p.: FishBase, 2017.
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Listrura: Brief Summary ( Spanish; Castilian )

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Listrura es un género de peces de la familia Trichomycteridae en el orden de los Siluriformes.

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Listrura ( Dutch; Flemish )

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Vissen

Listrura is een geslacht van straalvinnige vissen uit de familie van de parasitaire meervallen (Trichomycteridae).

Soorten

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Listrura: Brief Summary ( Dutch; Flemish )

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Listrura ( Ukrainian )

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Опис

Загальна довжина представників цього роду коливається від 3,7 до 4,9 см. Голова маленька. Очі крихітні. Є 3 пари вусів. Рот помірно широкий, розташовано у нижній частині голови. Мають 14-19 передщелепних зубів, 13-18 — на зубній кістці. Тулуб подовжений та циліндричний. Скелет складається з 56-58 хребців. Спинний плавець помірно широкий. Жировий плавець відсутній. Грудні плавці складаються з у 1 ниткоподібного променя. Черевні плавці відсутні. Анальний плавець невеличкий. Хвостовий скелет компактний, злитий. Хвостовий плавець закруглений, з 31-35 променями.

Забарвлення коричнювате, зі смугами або плямами.

Спосіб життя

Це бентопелагічні та демерсальні риби. Зустрічаються в невеличких річках, водойм вкритих рослинністю. Тримаються мілини, ховаються серед значних шарів листової підстилки при кам'янистому, піщаному дні. Живляться рачками, личинками комах, кліщами.

Розповсюдження

Є ендеміками Бразилії. Мешкають у річках Ла-Фігуейра, Жукуйа, Гвараквечаба, Естрела, Ібіквіба.

Види

Джерела

  • de Pínna, M.C.C. and W. Wosiacki, 2003. Trichomycteridae (pencil or parasitic catfishes). p. 270—290. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil.
  • Villa-Verde, L. and W.J.E.M. Costa, 2006. A new glanapterygine catfish of the genus Listrura (Siluriformes: Trichomycteridae) from the southeastern Brazilian coastal plains. Zootaxa 1142:43-50.
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