Description of a new species of the Melanorivulus pictus species-group (Cyprinodontiformes: Rivulidae) from the Rio Paraná basin in Brazil

Zootaxa ◽  
2020 ◽  
Vol 4852 (1) ◽  
pp. 125-132
Author(s):  
ERIC VENTURINI YWAMOTO ◽  
DALTON TAVARES BRESSANE NIELSEN ◽  
CLAUDIO OLIVEIRA
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Rio Grande ◽  
Species Group ◽  
Sao Paulo ◽  
Paulo State ◽  
Paraná Basin ◽  
Parana Basin ◽  
Ventral Area ◽  
A New Species

A new species of the genus Melanorivulus belonging to the Melanorivulus pictus species group is herein described, from a tributary of the Rio Grande, Rio Paraná basin, São Paulo State, Brazil. The new species can be distinguished from all other species of the Melanorivulus pictus species group by the unique presence of sides of body of males light bluish gray with 10–12 oblique red bars, 8 of which chevron-like, bifurcated and complete, i.e., running from dorsum to ventral area, and 2–4 incomplete, with vertices of the chevron-like bars along midbody, pointing forward. Comments on the putative relationships of the new species, as well as concerning its conservation status, are presented. 

scholarly journals A new species of the catfish genus Centromochlus (Siluriformes: Auchenipteridae: Centromochlinae) from the upper rio Paraná basin, Brazil

2015 ◽  
Vol 13 (1) ◽  
pp. 77-86 ◽  
Author(s):  
Luisa Maria Sarmento-Soares ◽  
José Luís Olivan Birindelli
Keyword(s):  
New Species ◽  
South America ◽  
Sao Paulo ◽  
São Paulo ◽  
Coastal Rivers ◽  
Paraná Basin ◽  
Adipose Fin ◽  
Parana Basin ◽  
A New Species

Centromochlus comprises twelve species, distributed in the main inland watersheds of South America, including the Orinoco, Essequibo, coastal rivers of Suriname, Amazon, upper Paraná and São Francisco basins. The new species is described from the upper rio Paraná based on material collected in 1965 during the construction of the UHE Ilha Solteira, São Paulo, Brazil. The new species is easily distinguished from all congeners due to absence of adipose fin, a condition otherwise restricted to Gelanoglanis nanonocticolus, among centromochlin catfishes. The new species comprises small catfishes (adults ranging from 35 to 39 mm SL), in which modified anal fin of males is devoid of denticulations or spines, and most posterior rays reduced in length. In addition, Tatia simplex Mees is transferred to Centromochlus and its generic reassignment discussed.

Hepaticites iporangae n. sp., Rio Bonito Formation, Early Permian (Sakmarian), Paraná Basin, Brazil, Western Gondwana

2011 ◽  
Vol 85 (2) ◽  
pp. 360-368 ◽  
Author(s):  
Fresia Ricardi-Branco ◽  
Rafael Souza Faria ◽  
André Jasper ◽  
Margot Guerra-Sommer
Keyword(s):  
New Species ◽  
South America ◽  
Rio Grande ◽  
Climatic Conditions ◽  
Formal Description ◽  
Early Permian ◽  
Rio Grande Do Sul ◽  
Paraná Basin ◽  
Parana Basin ◽  
A New Species

The formal description of a liverwort from the Paraná Basin is presented. The fossil was found in the Rio Bonito Formation, Early Permian (Sakmarian), and is identified as a new species of the genus Hepaticites, named H. iporangae n. sp. The samples studied were collected from the macrofossil-rich roof-shale layer of the Quitéria Outcrop in the municipality of Encruzilhada do Sul, state of Rio Grande do Sul, Brazil. H. iporangae is one of the oldest liverworts reported from South America. The fossil described here provides more evidence of the relative diversity of liverworts in Paleozoic Gondwana despite the severe climatic conditions during the glaciations of the Permo-Carboniferous.

Neea itanhaensis (Nyctaginaceae, Pisonieae), a new species from São Paulo State, Brazil

Phytotaxa ◽  
2019 ◽  
Vol 415 (4) ◽  
pp. 225-232
Author(s):  
ELSON FELIPE SANDOLI ROSSETTO ◽  
PATRÍCIA DE OLIVEIRA SANTOS ◽  
DANIEL SILVA COSTA ◽  
JOSÉ ROBERTO FERRAZ
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Sao Paulo ◽  
The Other ◽  
Habitat Conservation ◽  
São Paulo ◽  
Abaxial Surface ◽  
Paulo State ◽  
São Paulo State ◽  
A New Species

A new species, Neea itanhaensis, is described from São Paulo State, Brazil. N. itanhaensis differs from the other Neea species by its inflorescences with verticillate branching and sessile or subsessile leaves with an acute or oblique base and prominent secondary veins on the abaxial surface that diverge at less than a 90º angle from each other. Illustrations and comments about the taxonomy, phenology, distribution, habitat, conservation status and etymology are provided for the new species.

A new species of Satanoperca (Teleostei: Cichlidae) from the Rio Tocantins basin, Brazil

2021 ◽  
Vol 19 (4) ◽  
Author(s):  
Renata Rúbia Ota ◽  
Gabriel de Carvalho Deprá ◽  
Sven Kullander ◽  
Weferson Júnio da Graça ◽  
Carla Simone Pavanelli
Keyword(s):  
New Species ◽  
Color Pattern ◽  
Species Group ◽  
Congeneric Species ◽  
Different Types ◽  
Paraná Basin ◽  
Parana Basin ◽  
A New Species

Abstract A new species of Satanoperca is described from the Rio Araguaia, Rio Tocantins basin, Brazil, and non-native records are available in the upper Rio Paraná basin. It differs from congeneric species by color pattern characters, such as head and flank marks. It is included in the Satanoperca jurupari species group, characterized by the absence of black rounded blotches on the flank, and low meristic values. A description of the ontogeny of melanophore marks of the S. jurupari species group revealed two different types of arrangement on the flank and numerous melanophore marks on the head. A discussion on morphologically diverse assemblages in the S. jurupari species group is also provided.

scholarly journals New species of the Eiphosoma dentator (Fabricius, 1804) species-group (Hymenoptera, Ichneumonidae, Cremastinae) from Brazil

2012 ◽  
Vol 72 (2) ◽  
pp. 389-391 ◽  
Author(s):  
IF. Melo ◽  
HC. Onody ◽  
AM. Penteado-Dias
Keyword(s):  
New Species ◽  
Species Group ◽  
Sao Paulo ◽  
São Paulo ◽  
Paulo State ◽  
São Paulo State ◽  
Diagnostic Key ◽  
A New Species

A new species of Eiphosoma Cresson, 1865 (Hymenoptera, Ichneumonidae) is described based on five specimens collected in organic crops areas in Araraquara and Cravinhos municipalities, São Paulo State, Brazil. A diagnostic key to the neotropical Eiphosoma dentator species-group is also provided.

New earthworm species of Glossoscolex Leuckart, 1835 and Fimoscolex Michaelsen, 1900 (Clitellata: Glossoscolecidae) from Northern Paraná, Brazil

Zootaxa ◽  
2012 ◽  
Vol 3458 (1) ◽  
pp. 59 ◽  
Author(s):  
MARIE LUISE CAROLINA BARTZ ◽  
SAMUEL WOOSTER JAMES ◽  
AMARILDO PASINI ◽  
GEORGE GARDNER BROWN
Keyword(s):  
New Species ◽  
Species Group ◽  
Sao Paulo ◽  
São Paulo ◽  
Earthworm Species ◽  
Paulo State ◽  
Main Species ◽  
Group Position ◽  
São Paulo State ◽  
A New Species

Ten new species of Oligochaeta of the genera Glossoscolex (9) and Fimoscolex (1) are described from material collectedin northern Paraná and neighboring São Paulo State, Brazil: Glossoscolex lutocolus n. sp., G. palus n. sp., G. itaguajensisn. sp., G. uliginosus n. sp., G. primaensis n. sp., G. mariarum n. sp., G. sanpedroensis n. sp., G. giocondoi n. sp. andFimoscolex bartzi n. sp. The subgenus Glossoscolex (Praedrilus) is validated, with the inclusion of three more species (G.lutocolus n. sp., G. itaguajensis n. sp., and G. uliginosus n. sp.). The truncatus species group (male pores in xvii) ofGlossoscolex (Glossoscolex), to which the remaining six new Glossoscolex were assigned, is more problematic becauseseveral characters conflict with the character used to define this group (position of male pores). The relationships betweenGlossoscolex (Assudrilus) and Fimoscolex are discussed, and Fimoscolex sacii (Righi, 1971) is re-ascribed toGlossoscolex (Assudrilus). A new species of the genus Fimoscolex is presented, with a single intraclitellar male pore. Weprovide a table of characters in order to clarify the differences among the species described and the main species groupsand sub-genera of Glossoscolex, as well as some information on the ecology of some of the new species, including habitat and soil associations.

Begonia langenbergiana (Begoniaceae) a new species from the south of São Paulo State, Brazil

Phytotaxa ◽  
2018 ◽  
Vol 381 (1) ◽  
pp. 80
Author(s):  
LUDOVIC JEAN CHARLES KOLLMANN
Keyword(s):  
New Species ◽  
Atlantic Forest ◽  
Conservation Status ◽  
Sao Paulo ◽  
Similar Species ◽  
São Paulo ◽  
The South ◽  
Paulo State ◽  
São Paulo State ◽  
A New Species

Begonia langenbergiana, a new species of Begonia from São Paulo State, Brazil is described. Begonia langenbergiana is morphologically similar to Begonia itaguassuensis with which it is compared. The new species grows in hygrophilous Atlantic Forest in the south of São Paulo State, Brazil. A description, comparisons with morphologically similar species, etymology, taxonomic comments, illustrations, a map and the conservation status of the new species are provided.

A plant fossil assemblage of Lycopodiopsis cf. derbyi from the Corumbataí Formation, Paraná Basin, São Paulo State, Brazil

2021 ◽  
Author(s):  
Thaís Silvana de Carvalho ◽  
Marcelo Adorna Fernandes ◽  
Frésia Ricardi-Branco ◽  
Aline Marcele Ghilardi ◽  
Bernardo de Campos Pimenta e Marque Peixoto ◽  
...  
Keyword(s):  
Sao Paulo ◽  
São Paulo ◽  
Fossil Assemblage ◽  
Paulo State ◽  
Plant Fossil ◽  
Paraná Basin ◽  
São Paulo State ◽  
Parana Basin

scholarly journals A new Xenacanthiformes shark (Chondrichthyes, Elasmobranchii) from the Late Paleozoic Rio do Rasto Formation (Paraná Basin), Southern Brazil

2014 ◽  
Vol 86 (1) ◽  
pp. 135-145 ◽  
Author(s):  
VICTOR E. PAULIV ◽  
ELISEU V. DIAS ◽  
FERNANDO A. SEDOR ◽  
ANA MARIA RIBEIRO
Keyword(s):  
New Species ◽  
Longitudinal Section ◽  
Optical Microscope ◽  
Late Paleozoic ◽  
Southern Brazil ◽  
Fossil Assemblage ◽  
Transversal Section ◽  
Paraná Basin ◽  
Parana Basin ◽  
A New Species

The Brazilian records on Xenacanthiformes include teeth and cephalic spines from the Parnaíba, Amazonas and Paraná basins. This work describes a new species of Xenacanthidae, collected in an outcrop of Serrinha Member of Rio do Rasto Formation (Wordian to Wuchiapingian), Paraná Basin, municipality of Jacarezinho, State of Paraná. The teeth of the new species are two or three-cuspidated and the aboral surface show a smooth concavity and one rounded basal tubercle. The coronal surface presents one semi-spherical and subcircular coronal button, and also two lateral main cusps and one central (when present) with less than one fifth of the size of the lateral cusps in the labial portion. The lateral cusps are asymmetric or symmetric, rounded in transversal section, lanceolate in longitudinal section, devoid of lateral carinae and lateral serrations, and with few smooth cristae of enameloid. In optical microscope the teeth show a trabecular dentine (osteodentine) base, while the cusps are composed by orthodentine, and the pulp cavities are non-obliterated by trabecular dentine. The fossil assemblage in the same stratigraphical level and in the whole Rio do Rasto Formation indicates another freshwater record for xenacanthid sharks.

scholarly journals Iheringichthys syi (Siluriformes: Pimelodidae), a new pimelodid species from upper Paraná basin, Brazil

2012 ◽  
Vol 10 (1) ◽  
pp. 45-52
Author(s):  
María de las Mercedes Azpelicueta ◽  
Heraldo A. Britski
Keyword(s):  
New Species ◽  
Standard Length ◽  
Anterior Margin ◽  
Head Length ◽  
Dorsal Fin ◽  
Eye Diameter ◽  
Paraná Basin ◽  
Adipose Fin ◽  
Parana Basin ◽  
A New Species

We describe a new species of pimelodid catfish of the genus Iheringichthys from the upper Paraná basin, Brazil. Iheringichthys syi n. sp. is distinguished by the comparatively fine serration along the anterior margin of the pectoral-fin spine, an adpressed dorsal-fin remote from the adipose-fin origin, a large eye (23.2-31.2% of head length), narrow interorbital (16.2-23.0% of head length), long snout (42.0-51.0% of head length), long postorbital length (30.6-34.0% of head length), low adipose fin (4.8-7.8% of standard length), eye diameter 97.0-140.0% of interorbital length, and body with numerous, small dots irregularly scattered on flanks, especially marked on anterior half of flank.

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