A new species of Limatulichthys Isbrücker &amp;amp; Nijssen (Loricariidae, Loricariinae) from the western Guiana Shield

Londoño-Burbano, Alejandro; Lefebvre, Stephanie; Lujan, Nathan K.

doi:10.11646/zootaxa.3884.4.5

Cited by 7 publications

(6 citation statements)

References 11 publications

(15 reference statements)

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“…As discussed by Londoño‐Burbano et al . (2014), several species belonging to Loricariidae have a disjunct distribution in the Guiana Shield, as described here for L . cuffyi .…”

Section: Discussionmentioning

confidence: 81%

“…cuffyi . Harttia merevari Provenzano, Machado‐Allison, Chernoff, Willink & Petry 2005, Limatulichthys nasarcus Londoño‐Burbano et al ., 2014 and Pseudolithoxus anthrax (Armbruster & Provenzano, 2000) are recorded from the Caura and the Ventuari rivers, and Avalithoxus jantjae (Lujan, 2008) is known to occur in the upper Ventuari River. Congeners of the above‐mentioned species occur on the opposite side of the Guiana Shield, but there are no records of these occurring in intervening drainages.…”

Section: Discussionmentioning

confidence: 99%

“…Congeners of the above‐mentioned species occur on the opposite side of the Guiana Shield, but there are no records of these occurring in intervening drainages. A vicariant event of uplift in the Guiana Highlands is likely to be (at least partly) responsible for the disjunct and characteristic distribution within genera of Loricariidae in that region (Londoño‐Burbano et al ., 2014; Lujan et al ., 2018; Lujan & Armbruster, 2011). L. cuffyi clearly shows this event of divergence with the same species occurring on both sides of the Guiana Shield, but not in the intervening drainages.…”

Section: Discussionmentioning

confidence: 99%

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Loricaria cuffyi (Siluriformes: Loricariidae), a new species of loricariin catfish from the Guiana Shield

Londoño-Burbano

Urbano-Bonilla

Thomas

2020

Journal of Fish Biology

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Loricaria cuffyi n. sp. is described based on 36 specimens from the Essequibo and upper Negro River drainages in western Guyana and the upper Orinoco River drainage in Venezuela. The new species can be distinguished from sympatric and geographically proximate congeners by a postorbital notch that is inconspicuous, shallow and rounded, odontode ridges on the dorsum of head and predorsal weakly developed, abdominal plates tightly joined and completely covering the median abdominal space and pectoral girdle, higher anterior lateral plate counts, and coloration characteristics. The distribution of the new species adds to an interesting and well‐documented biogeographical pattern exhibited by other Guiana Shield loricariids influenced by the proto‐Berbice during the Cenozoic and recent configuration of drainages in the Guiana Shield. We present an update on the taxonomy of Loricaria, and discuss the biogeography and conservation status of the new species.

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“…As discussed by Londoño‐Burbano et al . (2014), several species belonging to Loricariidae have a disjunct distribution in the Guiana Shield, as described here for L . cuffyi .…”

Section: Discussionmentioning

confidence: 81%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Loricaria cuffyi (Siluriformes: Loricariidae), a new species of loricariin catfish from the Guiana Shield

Londoño-Burbano

Urbano-Bonilla

Thomas

2020

Journal of Fish Biology

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“…These include: Baryancistrus demantoides , Baryancistrus beggini , Hemiancistrus subviridis , Hypancistrus contradens , Hypancistrus furunculus , Hypancistrus lunaorum , Leporacanthicus cf. galaxias, Leporacanthicus triactis , Hypancistrus vandragti , Peckoltia lineola , Pseudolithoxus tigris , and Pseudancistrus pectegenitor (Armbruster 2008, Armbruster et al 2007, Lujan and Armbruster 2011, Lujan and Birindelli 2011, Lujan et al 2007, 2009, Werneke et al 2005). At least two other species have a disjunct distribution inclusive of the Ventuari River and the Caura River but are absent from intervening reaches of the Orinoco River main channel ( Limatulichthys nasarcus , and Pseudolithoxus anthrax ; Lujan and Birindelli 2011, Londoño-Burbano et al 2014), and in four of these instances there is strong morphological or molecular evidence that sister species are allopatrically distributed upstream vs. downstream of the confluence of the Orinoco and Atabapo/Guaviare/Inirida rivers. In addition to the Peckoltia lujani / Peckoltia wernekei pair, there is Hypancistrus debilittera and Hypancistrus furunculus , Pseudolithoxus kelsorum and Pseudolithoxus tigris , and Hemiancistrus sp.…”

Section: Discussionmentioning

confidence: 99%

A new species of Peckoltia from the Upper Orinoco (Siluriformes, Loricariidae)

Armbruster¹,

Lujan²

2016

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A new species of the suckermouth armored catfish genus Peckoltia is described from the lower Ventuari River, a tributary of the upper Orinoco River in Amazonas State, Venezuela. Specimens of this species were formerly included in the wide-ranging Amazonian species Peckoltia vittata, but a recent molecular phylogeny found Orinoco individuals to be distantly related to Amazon Basin individuals spanning the range of Peckoltia vittata syntypes. Detailed morphological examination confirmed distinctiveness of Orinoco specimens, and found them to be diagnosable from true Peckoltia vittata by having generally greater than 25 teeth (vs. less), spots on the nape (vs. nape lacking spots), the upper lip with two to three black bar-shaped markings in a line like a moustache (vs. lips generally with a hyaline wash), and by the snout having a medial black line disconnected from the moustache markings (vs. medial snout stripe connected to a bar just above the lip). Peckoltia wernekei displays remarkable genetic similarity to its sister species, Peckoltia lujani, but differs morphologically by having dentary tooth rows meet at an angle less than 90° (vs. >90°), by having large faint blotches on the abdomen (vs. abdomen with no blotches), by a smaller internares width (21.2–26.6% vs. 28.5–46.5% of interorbital width), and a larger dorsal spine (148.1–178.6% vs. 80.1–134.5% of abdominal length).

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“…The specimen had been identified there as Limatulichthys sp., but we refer to the fish to L. griseus as reported by Londoño-Burbano et al (2014), as it does not disagree with their concept of that species.…”

Section: Checklistsmentioning

confidence: 97%

A preliminary inventory of the catfishes of the lower Rio Nhamundá, Brazil (Ostariophysi, Siluriformes)

Collins

Ribeiro²,

Machado³

et al. 2015

BDJ

1,340

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The Rio Nhamundá is a poorly-known clearwater river draining the southern Guiana Shield of Brazil. In this study we report the findings of a preliminary ichthyological survey, focusing on catfishes (Siluriformes). We identify a total of 36 species (31 genera, seven families) from the Nhamundá, including 11 species already recorded from the river. Overall, our survey results show that even rapid surveys can provide important information on Amazon fish biodiversity, suggesting potential new species, providing range extensions for nominal species, and additionally highlighting taxa in need of taxonomic revision and genetic study. As well as the traditional forms of data collected on biodiversity surveys (i.e. preserved specimen vouchers), our study also provides "new" types of data in the form of DNA barcodes and images of fishes exhibiting colouration in life, information that will be invaluable in future work addressing difficult groups.O Rio Nhamundá é um rio de água clara, pouco conhecido, que drena parte do Escudo das Guianas em território brasileiro. Nesse estudo, nós reportamos os resultados de um levantamento ictiofaunístico preliminar dessa área, tendo como foco os bagres (Siluriformes). Nós identificamos um total de 36 espécies (31 gêneros, sete famílias) provenientes de nossa coleta, e adicionamos 11 espécies já conhecidas para o rio. De maneira geral, os resultados de nossa pesquisa mostram que mesmo levantamentos rápidos podem gerar informações importantes sobre a biodiversidade de peixes amazônicos, sugerindo potenciais espécies novas, ampliando a área de distribuição de espécies, além de apontar a necessidade de revisões taxonômicas e estudos genéticos para alguns taxa. Para além das formas tradicionais de dados coletados em pesquisas de biodiversidade (i.e. espécimes preservados), nosso estudo fornece "novas" formas de dados, como DNA barcodes e imagens com o padrão de coloração dos espécimes vivos, informações essas que serão de valor inestimável para futuros estudos que abordem grupos taxonômicos difíceis.

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A new species of Limatulichthys Isbrücker & Nijssen (Loricariidae, Loricariinae) from the western Guiana Shield

Cited by 7 publications

References 11 publications

Loricaria cuffyi (Siluriformes: Loricariidae), a new species of loricariin catfish from the Guiana Shield

Loricaria cuffyi (Siluriformes: Loricariidae), a new species of loricariin catfish from the Guiana Shield

A new species of Peckoltia from the Upper Orinoco (Siluriformes, Loricariidae)

A preliminary inventory of the catfishes of the lower Rio Nhamundá, Brazil (Ostariophysi, Siluriformes)

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