Lúcia Helena Rapp Py‐Daniel
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View article: Two new species of the ornamental loricariid genus Baryancistrus (Siluriformes: Hypostominae) from rio Trombetas basin, Pará, Brazil
Two new species of the ornamental loricariid genus Baryancistrus (Siluriformes: Hypostominae) from rio Trombetas basin, Pará, Brazil Open
Two new species of Baryancistrus are described from the rio Trombetas basin. These new species were collected in the late 1980’s and were analyzed morphologically and compared to the eight currently assigned species of Baryancistrus. Both …
View article: A new species of armored catfish of the genus Scobinancistrus (Loricariidae: Hypostominae) from the Xingu River basin, Brazil
A new species of armored catfish of the genus Scobinancistrus (Loricariidae: Hypostominae) from the Xingu River basin, Brazil Open
A new species of Scobinancistrus from the Xingu River, Brazil, is described. It can be distinguished from its congeners by color pattern and a combination of non-exclusive characters: overall body covered by large yellow spaced blotches ov…
View article: Paleogene emergence and evolutionary history of the Amazonian fossorial fish genus Tarumania (Teleostei: Tarumaniidae)
Paleogene emergence and evolutionary history of the Amazonian fossorial fish genus Tarumania (Teleostei: Tarumaniidae) Open
Tarumania walkerae is a rare fossorial freshwater fish species from the lower Rio Negro, Central Amazonia, composing the monotypic and recently described family Tarumaniidae. The family has been proposed as the sister group of Erythrinidae…
View article: A new sexually dimorphic Hyphessobrycon from the western Amazon basin (Characiformes: Characidae)
A new sexually dimorphic Hyphessobrycon from the western Amazon basin (Characiformes: Characidae) Open
A new species of Hyphessobrycon presenting dimorphic males is described from the western Amazon basin in Brazil, Colombia, Ecuador, and Peru. The new species has been mistakenly identified in the literature with the non-congener Hemigrammu…
View article: Putative poison gland in the thorny catfish Acanthodoras spinosissimus (Siluriformes: Doradidae)
Putative poison gland in the thorny catfish Acanthodoras spinosissimus (Siluriformes: Doradidae) Open
Acanthodoras is the only genus of catfish known to secrete a conspicuous and abundant milky-looking substance through an axillary pore located just below the base of the posterior cleithral process. Despite this remarkable feature, there i…
View article: A database of freshwater fish species of the Amazon Basin
A database of freshwater fish species of the Amazon Basin Open
The AmazonFISH - database of freshwater fish species of the Amazon Basin is organised in two sub-datasets and one shapefile. Updated Version of the Database, Version 2 (2022).GeneralDistribution2022_v2.csvCompleteDatabase2022_v2GeneralDist…
View article: A new sexually dimorphic Hyphessobrycon from the western Amazon basin (Characiformes: Characidae)
A new sexually dimorphic Hyphessobrycon from the western Amazon basin (Characiformes: Characidae) Open
This dataset contains the digitized treatments in Plazi based on the original journal article Lima, Flávio C. T., Bastos, Douglas A., Rapp Py-Daniel, Lúcia H., Ota, Rafaela P. (2022): A new sexually dimorphic Hyphessobrycon from the wester…
View article: A database of freshwater fish species of the Amazon Basin
A database of freshwater fish species of the Amazon Basin Open
The AmazonFISH - database of freshwater fish species of the Amazon Basin is organised in two sub-datasets and one shapefile. Updated Version of the Database, Version 2 (2022).GeneralDistribution2022_v2.csvCompleteDatabase2022_v2GeneralDist…
View article: Putative poison gland in the thorny catfish Acanthodoras spinosissimus (Siluriformes: Doradidae)
Putative poison gland in the thorny catfish Acanthodoras spinosissimus (Siluriformes: Doradidae) Open
Acanthodoras is the only genus of catfish known to secrete a conspicuous and abundant milky-looking substance through an axillary pore located just below the base of the posterior cleithral process. Despite this remarkable feature, there i…
View article: Taxonomic revision of Hopliancistrus Isbrücker & Nijssen, 1989 (Siluriformes, Loricariidae) with redescription of Hopliancistrus tricornis and description of four new species
Taxonomic revision of Hopliancistrus Isbrücker & Nijssen, 1989 (Siluriformes, Loricariidae) with redescription of Hopliancistrus tricornis and description of four new species Open
Hopliancistrus is an Ancistrini genus diagnosed by having few and very strong cheek odontodes on interopercular area, and a patch of strong and stiff odontodes on the antero-lateral border of the snout. The type species is herein redescrib…
View article: Social predation in electric eels
Social predation in electric eels Open
Social predation—when groups of predators coordinate actions to find and capture prey—is a common tactic among mammals but comparatively rare in fishes. We report the unexpected social predation by electric eels, an otherwise solitary pred…
View article: A new species of Bryconops (Characiformes: Iguanodectidae) from Atlantic coastal drainages of Suriname and French Guiana
A new species of Bryconops (Characiformes: Iguanodectidae) from Atlantic coastal drainages of Suriname and French Guiana Open
A new species of Bryconops is described based on its unique caudal-fin color pattern, with a dark blotch occupying the mid-basal region of the caudal-fin dorsal lobe, and a combination of 29-32 branched anal-fin rays, 44-47 perforated scal…
View article: Organization of the cephalic lateral-line canals in Electrophorus varii de Santana, Wosiacki, Crampton, Sabaj, Dillman, Mendes-Júnior & Castro e Castro, 2019 (Gymnotiformes: Gymnotidae)
Organization of the cephalic lateral-line canals in Electrophorus varii de Santana, Wosiacki, Crampton, Sabaj, Dillman, Mendes-Júnior & Castro e Castro, 2019 (Gymnotiformes: Gymnotidae) Open
Electrophorus spp. generate high-voltage electric discharges for defense and hunting, and low-voltage electric discharges (as other Gymnotiformes) for electrolocation and communication. Despite intense interest in the unusual electrogenic …
View article: Rediscovering species: redescription of Bryconops gracilis (Characiformes: Iguanodectidae), an often-misidentified species
Rediscovering species: redescription of Bryconops gracilis (Characiformes: Iguanodectidae), an often-misidentified species Open
A redescription of Bryconops gracilis is provided, a species poorly known for more than a century. Bryconops gracilis differs from all congeners by having the following combination of features: eight branched pelvic-fin rays, 31-36 anal-fi…
View article: Social predation in electric eels
Social predation in electric eels Open
Social predation, when groups of predators coordinate actions to find and capture prey, is a common tactic among mammals but comparatively rare in fishes. We report the unexpected social predation by electric eels, an otherwise solitary pr…
View article: A database of freshwater fish species of the Amazon Basin
A database of freshwater fish species of the Amazon Basin Open
The Amazon Basin is an unquestionable biodiversity hotspot, containing the highest freshwater biodiversity on earth and facing off a recent increase in anthropogenic threats. The current knowledge on the spatial distribution of the freshwa…
View article: A database of freshwater fish species of the Amazon Basin
A database of freshwater fish species of the Amazon Basin Open
The AmazonFISH - database of freshwater fish species of the Amazon Basin is organised in two sub-datasets and one shapefile. GeneralDistribution.csv: Table containing the species list by sub-drainage with the taxonomic reference names and …
View article: Poor taxonomic sampling undermines nomenclatural stability: A reply to Roxo et al. (2019)
Poor taxonomic sampling undermines nomenclatural stability: A reply to Roxo et al. (2019) Open
A recent study based on genomic data by Roxo et al. (2019) provided a phylogeny of the Loricariidae, the largest catfish family and second largest Neotropical fish family with approximately 1,000 species. The study represents a valuable an…
View article: A molecular assessment of species diversity in <i>Tympanopleura</i> and <i>Ageneiosus</i> catfishes (Auchenipteridae: Siluriformes)
A molecular assessment of species diversity in <i>Tympanopleura</i> and <i>Ageneiosus</i> catfishes (Auchenipteridae: Siluriformes) Open
In order to test the congruence of genetic data to the morphologically defined Neotropical catfish genera Tympanopleura and Ageneiosus and explore species diversity, we generated 17 DNA barcodes from five of six species of Tympanopleura an…
View article: Two New Species of the Armored Catfish Genus Baryancistrus Rapp Py-Daniel, 1989 (Siluriformes: Loricariidae) from Jari River, Amazon Basin, Brazil
Two New Species of the Armored Catfish Genus Baryancistrus Rapp Py-Daniel, 1989 (Siluriformes: Loricariidae) from Jari River, Amazon Basin, Brazil Open
Two new species of the suckermouth armored catfish genus Baryancistrus are described from the Jari River basin, at the border of Pará and Amapá states, Brazil. The new species are the first representatives of the genus described from river…
View article: Bryconops rheorubrum (Characiformes: Iguanodectidae), new species from the Rio Xingu Rapids, Brazil
Bryconops rheorubrum (Characiformes: Iguanodectidae), new species from the Rio Xingu Rapids, Brazil Open
A new species of Bryconops is described from the rio Xingu Basin, Brazil, that differs from all congeners by the following combination of characters: predorsal scales 8–9, perforated scales in the lateral line 43–45, and pigmentation patte…
View article: A new species of Paralithoxus (Siluriformes: Loricariidae: Ancistrini) from the highlands of Serra da Mocidade, Roraima State, Brazilian Amazon
A new species of Paralithoxus (Siluriformes: Loricariidae: Ancistrini) from the highlands of Serra da Mocidade, Roraima State, Brazilian Amazon Open
A new species of Paralithoxus is described from the Ajarani River, a small tributary of the Branco River basin, Roraima State, Brazilian Amazon. The genus Paralithoxus comprises species described from the Essequibo drainage in Guyana, Appr…
View article: A new species of Ancistrus Kner, 1854 (Siluriformes: Loricariidae) from rio Madeira basin, Amazonas State, Brazil
A new species of Ancistrus Kner, 1854 (Siluriformes: Loricariidae) from rio Madeira basin, Amazonas State, Brazil Open
This dataset contains the digitized treatments in Plazi based on the original journal volume Bifi, Alessandro Gasparetto, Oliveira, Renildo Ribeiro de, Py-Daniel, Lúcia Rapp (2019): A new species of Ancistrus Kner, 1854 (Siluriformes: Lori…
View article: A new species of Ancistrus Kner, 1854 (Siluriformes: Loricariidae) from rio Madeira basin, Amazonas State, Brazil
A new species of Ancistrus Kner, 1854 (Siluriformes: Loricariidae) from rio Madeira basin, Amazonas State, Brazil Open
During the Mosaico do Apuí expedition in 2006, a new species of Ancistrus was found in the rio Sucunduri, a large tributary of the rio Madeira basin in south Amazonas State. The new species has a unique color pattern for the genus and is d…
View article: Biogeography and species delimitation of the rheophilic suckermouth catfish genus <i>Pseudolithoxus</i> (Siluriformes: Loricariidae), with the description of a new species from the Brazilian Amazon
Biogeography and species delimitation of the rheophilic suckermouth catfish genus <i>Pseudolithoxus</i> (Siluriformes: Loricariidae), with the description of a new species from the Brazilian Amazon Open
The rapids-dwelling suckermouth catfish genus Pseudolithoxus was previously only known from the Guiana-Shield-draining Orinoco and Casiquiare river systems of Colombia and Venezuela, but new records have expanded this range considerably fu…
View article: FIGURE 3. Harttia villasboas, MZUSP 97078, 126.0 in Three new species of Harttia (Loricariidae: Loricariinae) from Serra do Cachimbo, Rio Xingu basin, Pará, Northern Brazil
FIGURE 3. Harttia villasboas, MZUSP 97078, 126.0 in Three new species of Harttia (Loricariidae: Loricariinae) from Serra do Cachimbo, Rio Xingu basin, Pará, Northern Brazil Open
FIGURE 3. Harttia villasboas, MZUSP 97078, 126.0 mm SL, holotype. Brazil, Pará State, Novo Progresso, Rio Curuá, tributary of Rio Iriri, above two waterfalls, near the restaurant at highway Cuiabá-Santarém (BR-163), Rio Xingu basin. From t…
View article: Cytogenetics of two Farlowella species (Loricariidae: Loricariinae): implications on the taxonomic status of the species
Cytogenetics of two Farlowella species (Loricariidae: Loricariinae): implications on the taxonomic status of the species Open
Farlowella is one of the most diverse genera of the Loricariinae, restricted to South America rivers. The taxonomic and phylogenetic relationships among its species are contentious and, while genetic studies would contribute to the underst…
View article: Cytogenetics of two Farlowella species (Loricariidae: Loricariinae): implications on the taxonomic status of the species
Cytogenetics of two Farlowella species (Loricariidae: Loricariinae): implications on the taxonomic status of the species Open
Farlowella is one of the most diverse genera of the Loricariinae, restricted to South America rivers. The taxonomic and phylogenetic relationships among its species are contentious and, while genetic studies would contribute to the underst…
View article: Biogeography and species delimitation of the rheophilic suckermouth catfish genus <i>Pseudolithoxus</i> (Siluriformes: Loricariidae), with the description of a new species from the Brazilian Amazon
Biogeography and species delimitation of the rheophilic suckermouth catfish genus <i>Pseudolithoxus</i> (Siluriformes: Loricariidae), with the description of a new species from the Brazilian Amazon Open
The rapids-dwelling suckermouth catfish genus Pseudolithoxus was previously only known from the Guiana-Shield-draining Orinoco and Casiquiare river systems of Colombia and Venezuela, but new records have expanded this range considerably fu…