A new species of Parotocinclus with reduced adipose fin (Loricariidae: Hypoptopomatinae), from the rio Jacuípe basin, Bahia State, Brazil

ABSTRACT A new species of Parotocinclus, apparently endemic to the rio Jacuípe basin, Bahia State, Brazil, is described. The new species is distinguished from congeners, except P. bidentatus, P. cabessadecuia, P. dani, P. halbothi, P. muriaensis, P. pentakelis, P. seridoensis, and P. spilurus, by th...

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Veröffentlicht in:Neotropical Ichthyology 2020, Vol.18 (2), p.e190137
Hauptverfasser: Silva-Junior, Dario Ernesto da, Ramos, Telton Pedro Anselmo, Zanata, Angela Maria
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description ABSTRACT A new species of Parotocinclus, apparently endemic to the rio Jacuípe basin, Bahia State, Brazil, is described. The new species is distinguished from congeners, except P. bidentatus, P. cabessadecuia, P. dani, P. halbothi, P. muriaensis, P. pentakelis, P. seridoensis, and P. spilurus, by the presence of a reduced adipose fin. The new species differs from the aforementioned species by the absence of unicuspid accessory teeth, abdomen with broad naked areas between lateral and medial patches of plates, and snout tip completely covered by plates and odontodes. The adipose fin of the new species is restrict solely to the adipose-fin spine, lacking the adipose-fin membrane, a reduction pattern previously described to P. halbothi, a congener from rivers of the Amazonas and Marowijne basins. RESUMO Uma espécie nova de Parotocinclus, aparentemente endêmica da bacia do rio Jacuípe, Estado da Bahia, Brasil, é descrita. A espécie nova se distingue de suas congêneres, exceto P. bidentatus, P. cabessadecuia, P. dani, P. halbothi, P. muriaensis, P. pentakelis, P. seridoensis e P. spilurus, pela presença de nadadeira adiposa reduzida. A nova espécie difere das espécies mencionadas anteriormente pela ausência de dentição acessória unicúspide, abdômen com amplas áreas nuas entre o grupo de placas laterais e o grupo de placas medianas e ponta do focinho completamente coberta por placas e odontódeos. A nadadeira adiposa da nova espécie é restrita somente ao espinho, sem a membrana da adiposa, um padrão de redução descrito para P. halbothi, uma congênere de rios da bacia Amazônica e da bacia do rio Marowijne.
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The new species is distinguished from congeners, except P. bidentatus, P. cabessadecuia, P. dani, P. halbothi, P. muriaensis, P. pentakelis, P. seridoensis, and P. spilurus, by the presence of a reduced adipose fin. The new species differs from the aforementioned species by the absence of unicuspid accessory teeth, abdomen with broad naked areas between lateral and medial patches of plates, and snout tip completely covered by plates and odontodes. The adipose fin of the new species is restrict solely to the adipose-fin spine, lacking the adipose-fin membrane, a reduction pattern previously described to P. halbothi, a congener from rivers of the Amazonas and Marowijne basins. RESUMO Uma espécie nova de Parotocinclus, aparentemente endêmica da bacia do rio Jacuípe, Estado da Bahia, Brasil, é descrita. A espécie nova se distingue de suas congêneres, exceto P. bidentatus, P. cabessadecuia, P. dani, P. halbothi, P. muriaensis, P. pentakelis, P. seridoensis e P. spilurus, pela presença de nadadeira adiposa reduzida. A nova espécie difere das espécies mencionadas anteriormente pela ausência de dentição acessória unicúspide, abdômen com amplas áreas nuas entre o grupo de placas laterais e o grupo de placas medianas e ponta do focinho completamente coberta por placas e odontódeos. A nadadeira adiposa da nova espécie é restrita somente ao espinho, sem a membrana da adiposa, um padrão de redução descrito para P. halbothi, uma congênere de rios da bacia Amazônica e da bacia do rio Marowijne.</description><identifier>ISSN: 1679-6225</identifier><identifier>ISSN: 1982-0224</identifier><identifier>EISSN: 1982-0224</identifier><identifier>DOI: 10.1590/1982-0224-2019-0137</identifier><language>eng</language><publisher>Maringa: Sociedade Brasileira de Ictiologia</publisher><subject>Cascudinho ; Catfishes ; Fins ; Freshwater ; New species ; Northeastern Mata Atlântica freshwater ecoregion ; Parotocinclus ; Rivers ; Siluriformes ; Taxonomy ; Teeth ; ZOOLOGY</subject><ispartof>Neotropical Ichthyology, 2020, Vol.18 (2), p.e190137</ispartof><rights>Copyright 2020</rights><rights>This work is licensed under a Creative Commons Attribution 4.0 International License.</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c427t-2c867d886e8fd9d72ded19f73ee154143689ab4567aea79a203b518f74a7482a3</citedby><cites>FETCH-LOGICAL-c427t-2c867d886e8fd9d72ded19f73ee154143689ab4567aea79a203b518f74a7482a3</cites><orcidid>0000-0002-1152-1579 ; 0000-0002-3808-8701 ; 0000-0001-6500-8562</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,780,784,864,885,4024,27923,27924,27925</link.rule.ids></links><search><creatorcontrib>Silva-Junior, Dario Ernesto da</creatorcontrib><creatorcontrib>Ramos, Telton Pedro Anselmo</creatorcontrib><creatorcontrib>Zanata, Angela Maria</creatorcontrib><title>A new species of Parotocinclus with reduced adipose fin (Loricariidae: Hypoptopomatinae), from the rio Jacuípe basin, Bahia State, Brazil</title><title>Neotropical Ichthyology</title><addtitle>Neotrop. ichthyol</addtitle><description>ABSTRACT A new species of Parotocinclus, apparently endemic to the rio Jacuípe basin, Bahia State, Brazil, is described. 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A espécie nova se distingue de suas congêneres, exceto P. bidentatus, P. cabessadecuia, P. dani, P. halbothi, P. muriaensis, P. pentakelis, P. seridoensis e P. spilurus, pela presença de nadadeira adiposa reduzida. A nova espécie difere das espécies mencionadas anteriormente pela ausência de dentição acessória unicúspide, abdômen com amplas áreas nuas entre o grupo de placas laterais e o grupo de placas medianas e ponta do focinho completamente coberta por placas e odontódeos. 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The new species is distinguished from congeners, except P. bidentatus, P. cabessadecuia, P. dani, P. halbothi, P. muriaensis, P. pentakelis, P. seridoensis, and P. spilurus, by the presence of a reduced adipose fin. The new species differs from the aforementioned species by the absence of unicuspid accessory teeth, abdomen with broad naked areas between lateral and medial patches of plates, and snout tip completely covered by plates and odontodes. The adipose fin of the new species is restrict solely to the adipose-fin spine, lacking the adipose-fin membrane, a reduction pattern previously described to P. halbothi, a congener from rivers of the Amazonas and Marowijne basins. RESUMO Uma espécie nova de Parotocinclus, aparentemente endêmica da bacia do rio Jacuípe, Estado da Bahia, Brasil, é descrita. A espécie nova se distingue de suas congêneres, exceto P. bidentatus, P. cabessadecuia, P. dani, P. halbothi, P. muriaensis, P. pentakelis, P. seridoensis e P. spilurus, pela presença de nadadeira adiposa reduzida. A nova espécie difere das espécies mencionadas anteriormente pela ausência de dentição acessória unicúspide, abdômen com amplas áreas nuas entre o grupo de placas laterais e o grupo de placas medianas e ponta do focinho completamente coberta por placas e odontódeos. A nadadeira adiposa da nova espécie é restrita somente ao espinho, sem a membrana da adiposa, um padrão de redução descrito para P. halbothi, uma congênere de rios da bacia Amazônica e da bacia do rio Marowijne.</abstract><cop>Maringa</cop><pub>Sociedade Brasileira de Ictiologia</pub><doi>10.1590/1982-0224-2019-0137</doi><orcidid>https://orcid.org/0000-0002-1152-1579</orcidid><orcidid>https://orcid.org/0000-0002-3808-8701</orcidid><orcidid>https://orcid.org/0000-0001-6500-8562</orcidid><oa>free_for_read</oa></addata></record>
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subjects Cascudinho
Catfishes
Fins
Freshwater
New species
Northeastern Mata Atlântica freshwater ecoregion
Parotocinclus
Rivers
Siluriformes
Taxonomy
Teeth
ZOOLOGY
title A new species of Parotocinclus with reduced adipose fin (Loricariidae: Hypoptopomatinae), from the rio Jacuípe basin, Bahia State, Brazil
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