First record of Steindachnerina insculpta (Fern&aacute;ndez-Y&eacute;pez, 1948)&nbsp;(Characiformes, Curimatidae) in Argentina

Recent expeditions to northwestern Argentina revealed the presence of an unknown species of Curimatidae for the Bermejo river basin. The morphometric and meristic analyses of these specimens allow us to identify them as Steindachnerina insculpta (Fernández-Yépez, 1948), which is here reported for the first time in Argentina

Download Full-text

Rediscovery of Vanzolini’s Bald-Faced Saki, Pithecia vanzolinii Hershkovitz, 1987 (Primates, Pitheciidae): first record since 1956

Check List ◽

10.15560/13.1.2048 ◽

2017 ◽

Vol 13 (1) ◽

pp. 2048 ◽

Cited By ~ 2

Author(s):

André V. Nunes ◽

José E. Serrano-Villavicencio

Keyword(s):

River Basin ◽

First Record ◽

The State ◽

Extractive Reserve ◽

Unknown Species ◽

Local Inhabitant

We report the rediscovery of Pithecia vanzolinii in the upper Juruá River Basin, in the State of Acre, Brazil. An individual was collected after being hunted by a local inhabitant of an extractive community in the Riozinho da Liberdade Extractive Reserve. This is the first record of this species in the last 60 years and highlights the importance of intensifying studies of this almost unknown species.

Download Full-text

First record of the invasive snail Melanoides tuberculatus (Gastropoda: Prosobranchia: Thiaridae) in the Paranã River basin, GO, Brazil

Brazilian Journal of Biology ◽

10.1590/s1519-69842006000600018 ◽

2006 ◽

Vol 66 (4) ◽

pp. 1109-1115 ◽

Cited By ~ 15

Author(s):

F. Rocha-Miranda ◽

M. J. Martins-Silva

Keyword(s):

East Africa ◽

River Basin ◽

Thermal Water ◽

First Record ◽

Paraná River ◽

Water Bodies ◽

Parana River ◽

First Time ◽

Paraná River Basin

The Thiarid snail Melanoides tuberculatus (Müller, 1774), native to Asia and East Africa was recorded for the first time in the Paranã River basin, Goiás State. There is no evidence concerning introduction vectors but aquarium releases is the most probable vector. Specimens were collected at three different water bodies after twenty-seven rivers were investigated. The possible spread of this species to other habitats and potential effects on native thermal water communities are discussed.

Download Full-text

Limnoperna fortunei (Dunker, 1857) (Mollusca, Bivalvia, Mytilidae): first record in the São Francisco River basin, Brazil

Check List ◽

10.15560/12.1.1846 ◽

2016 ◽

Vol 12 (1) ◽

pp. 1846 ◽

Cited By ~ 17

Author(s):

Newton P. U. Barbosa ◽

Fabiano A. Silva ◽

Márcia Divina De Oliveira ◽

Miguel Arcanjo dos Santos Neto ◽

Marcela David De Carvalho ◽

...

Keyword(s):

River Basin ◽

First Record ◽

Northeastern Brazil ◽

Limnoperna Fortunei ◽

Sao Francisco River ◽

Central Brazil ◽

São Francisco River ◽

The Government ◽

First Time ◽

Uruguay River

Limnoperna fortunei (Dunker, 1857) is a small mytilid native to Southeast Asia. It was introduced in South America in early 1990 and has dispersed from Argentina to central Brazil, and until 2014 has been restricted mainly to the Paraná and Uruguay river basins. The present note reports the occurrence of Limnoperna fortunei for the first time in the São Francisco River basin in northeastern Brazil. The establishment of L. fortunei in these regions will require close attention from the government and also by society.

Download Full-text

Paralonchothrix gen. nov., the first record of Echimyini (Rodentia, Octodontoidea) in the late Miocene of Southern South America

Earth and Environmental Science Transactions of the Royal Society of Edinburgh ◽

10.1017/s175569102100027x ◽

2021 ◽

pp. 1-12

Author(s):

Pedro PIÑERO ◽

A. Itatí OLIVARES ◽

Diego H. VERZI ◽

Victor H. CONTRERAS

Keyword(s):

South America ◽

Late Miocene ◽

New Genus ◽

Sister Group ◽

First Record ◽

Northwestern Argentina ◽

Southern South America ◽

Evolutionary Pattern ◽

Minimum Age ◽

First Time

ABSTRACT Echimyidae is the most widely diversified family among hystricognath rodents, both in the number of species and variety of lifestyles. In the Patagonian Subregion of southern South America, extinct echimyids related to living arboreal species (Echimyini) are recorded up to the middle Miocene, whereas all the known southern fossils since the late Miocene are linked to terrestrial and fossorial lineages currently inhabiting the Chacoan open biome in eastern South America. In this work, we describe a new genus of echimyid rodent, Paralonchothrix gen. nov., from the late Miocene of northwestern Argentina and western Brazil. Its single recognised species, Paralonchothrix ponderosus comb. nov., is represented by two hemimandibles. One of them comes from a level of Loma de Las Tapias Formation, underlying a tuff dated at 7.0 ± 0.9 Ma (Huayquerian age, late Miocene); the other specimen comes from the ‘Araucanense’ of Valle de Santa María (type locality, Huayquerian age, late Miocene). A phylogenetic analysis linked Paralonchothrix to Lonchothrix, both being the sister group to Mesomys. Thereby, for the first time, an echimyid linked to living Amazonian arboreal clades is recognised for the late Miocene of southern South America. Paralonchothrix gen. nov. thus represents an exceptional record that raises the need to review the postulated evolutionary pattern for echimyids recorded at high latitudes since the late Miocene. The new genus provides a minimum age (ca.7 Ma) in the fossil record for the divergence between Mesomys and Lonchothrix. The palaeoenvironmental conditions inferred for the late Miocene in western and northwestern Argentina suggest savanna-type environments, with areas with more closed woodlands in peri-Andean valleys. The record of Paralonchothrix gen. nov. supports the hypothesis that this area would have maintained connections with tropical biomes of northern South America during the late Miocene.

Download Full-text

First record of Corbicula largillierti (Philippi 1844) in the Paraíba River Basin and potential implications from water diversion of the São Francisco River

Biota Neotropica ◽

10.1590/1676-0603003614 ◽

2014 ◽

Vol 14 (4) ◽

Cited By ~ 4

Author(s):

Evaldo de Lira Azevêdo ◽

José Etham de Lucena Barbosa ◽

Teofânia H. D. A. Vidigal ◽

Marcos Callisto ◽

Joseline Molozzi

Keyword(s):

River Basin ◽

Short Communication ◽

First Record ◽

Water Diversion ◽

Mato Grosso ◽

Sao Francisco River ◽

São Francisco River ◽

Ecological Problems ◽

First Time ◽

Semi Arid

Corbicula largillierti is a native mollusk from China. In Brazil, this species was first recorded in the Pantanal of Mato Grosso. This short communication reports the occurrence of C. largillierti for the first time in the Paraíba river basin (Brazilian semi-arid), and also considers the risk of introduction of other molluscs invaders in this basin due to the diversion of water from the São Francisco River. Densities of individuals ranged from 33 to 65 ind.m-2 (maximum values of 484 ind.m-2) in coarse sediment (gravel, 2-4 mm). The diversion of waters from the São Francisco river can lead to the introduction of new species, enhancing ecological problems in the Paraiba river basin.

Download Full-text

Range extension of Hypostomus cochliodon Kner, 1854 (Siluriformes: Loricariidae) in Bermejo River, Salta, Argentina

Check List ◽

10.15560/12.4.1953 ◽

2016 ◽

Vol 12 (4) ◽

pp. 1953

Author(s):

Guillermo Enrique Terán ◽

Felipe Alonso ◽

Gastón Aguilera ◽

Juan Marcos Mirande

Keyword(s):

River Basin ◽

First Record ◽

Range Extension ◽

First Time

Hypostomus cochliodon Kner, 1854 had been recorded from Paraguay and Paraná rivers in Argentina. We recorded for the first time specimens of H. cochliodon to the Bermejo River basin. It is also the first record of this species to Salta province, Argentina.

Download Full-text

First record of Jupiaba acanthogaster (Eigenmann, 1911) (Ostariophysi, Characidae) in the upper Paraná river basin, Brazil

Check List ◽

10.15560/16.4.889 ◽

2020 ◽

Vol 16 (4) ◽

pp. 889-893

Author(s):

Douglas Alves Lopes ◽

Thiago T. M. Taveira ◽

Francisco Severo-Neto ◽

Fernando R. Carvalho

Keyword(s):

River Basin ◽

First Record ◽

River Basins ◽

Small Species ◽

River Drainage ◽

Paraguay River ◽

First Time ◽

Pelvic Fin

Jupiaba Zanata, 1997 is a genus with small species within Characidae, identified by a pair of modified bones in the form of spines just anteriorly to pelvic-fin base. The genus is mostly distributed throughout the Amazon drainage, except J. acanthogaster (Eigenmann, 1911), which also occurs in the Paraguay river basin. In this work, we recorded for the first time J. acanthogaster in the Sucuriú River drainage, upper Paraná river basin, Brazil. Its occurrence may be a consequence of the historical hydrological interaction between the Paraná and Paraguay river basins.

Download Full-text

Pisces, Perciformes, Cichlidae, Laetacara dorsigera (Heckel, 1840): distribution extension and first record for Uruguay River basin, and state of Rio Grande do Sul, southern Brazil

Check List ◽

10.15560/6.1.116 ◽

2010 ◽

Vol 6 (1) ◽

pp. 116

Author(s):

Luis Esteban Krause Lanés ◽

Leonardo Maltchik ◽

Carlos Alberto S. de Lucena

Keyword(s):

River Basin ◽

Rio Grande ◽

First Record ◽

River Basins ◽

Southern Brazil ◽

Rio Grande Do Sul ◽

Paraguay River ◽

First Time ◽

Uruguay River

The present study records for the first time the small cichlidae fish Laetacara dorsigera (Heckel, 1840) at Uruguay River basin and state of Rio Grande do Sul, southern Brazil, previously known from Amazon, Paraná and Paraguay River basins. Although the ichthyofauna of Uruguay River basin is relatively well known, this record suggests that there are still unexplored environments, such as wetlands, where there may be species not yet reported, and found in other hydrographic systems.

Download Full-text

First Record of Myrcia magna D.Legrand (Myrtaceae) as a Myrmecophyte Host for Myrcidris epicharis Ward, 1990 (Formicidae: Pseudomyrmecinae)

Sociobiology ◽

10.13102/sociobiology.v66i4.4477 ◽

2019 ◽

Vol 66 (4) ◽

pp. 592

Author(s):

Paulo Henrique Gaem ◽

Francisco Farroñay ◽

Talitha Ferreira Santos ◽

Nicolli Bruna Cabello ◽

Fiorella Fernanda Mazine ◽

...

Keyword(s):

River Basin ◽

Plant Species ◽

First Record ◽

Negro River ◽

Amazonas State ◽

First Time

The association of the ant Myrcidris epicharis with the plant Myrcia magna is reported for the first time. This association was registered in two localities along the Negro river basin, in the region of Manaus, Amazonas state, Brazil. The ants inhabit swollen shoots in apical and subjacent nodes of the branches. This record represents the second plant species of Myrtaceae to be associated with Myrcidris epicharis.

Download Full-text

First record of the highfin goby Gobionellus oceanicus (Gobiiformes: Gobiidae) in Costa Rican freshwaters

UNED Research Journal ◽

10.22458/urj.v10i2.2169 ◽

2018 ◽

Vol 10 (2) ◽

pp. 404-408

Author(s):

Francisco S. Álvarez ◽

Derick Herrerea ◽

Arturo Angulo

Keyword(s):

Costa Rica ◽

Freshwater Fish ◽

River Basin ◽

Fish Species ◽

New Record ◽

First Record ◽

Costa Rican ◽

Freshwater Fish Species ◽

First Time

The highfin goby Gobionelus oceanicus is herein reported for the first time in freshwaters of Costa Rica. One specimen was collected in the lower Pacuare River basin, Atlantic slope, Costa Rica. This new record brings the total number of Costa Rican native freshwater fish species to 253.

Download Full-text