scholarly journals New records of Imantodes lentiferus (Cope, 1894) (Squamata: Dipsadidae) from the states of Pará and Mato Grosso, Brazil

Check List ◽  
2015 ◽  
Vol 11 (4) ◽  
pp. 1686
Author(s):  
Jossehan Galúcio da Frota ◽  
Alexandre Felipe Raimundo Missassi ◽  
Maria Cristina Dos Santos-Costa ◽  
Ana Lucia Da Costa Prudente
Keyword(s):  
Amazon Basin ◽  
French Guiana ◽  
New Records ◽  
Mato Grosso ◽  
The North

The arboreal snake Imantodes lentiferus (Cope, 1894) is distributed in lowland rainforests of the Amazon basin and Guiana region, reported from Colombia, Ecuador, Peru, Suriname, French Guiana, Guyana, Bolivia, Venezuela, and Brazil. In Brazil it occurs in the north and central-west regions, in the states of Acre, Rondônia, Amazonas, Pará, and Mato Grosso. This study reports new records of Imantodes lentiferus from Pará and Mato Grosso. These new records fill a large gap in the known distribution of this species.

scholarly journals The distribution of Cteniloricaria (Siluriformes: Loricariidae): known and new records in Brazil suggest headwater captures as drivers of disjoint distribution

2021 ◽  
Vol 19 (2) ◽  
Author(s):  
Alejandro Londoño-Burbano ◽  
Marina Barreira Mendonça ◽  
Roberto E. Reis
Keyword(s):  
Amazon Basin ◽  
French Guiana ◽  
New Records ◽  
Extinction Risk ◽  
First Record ◽  
Valid Species ◽  
The North ◽  
Coastal Rivers ◽  
Extinction Risk Assessment ◽  
The Guianas

Abstract Cteniloricaria is a genus of Neotropical armored catfishes belonging to the Loricariinae, currently including two valid species: C. platystoma and C. napova. Cteniloricaria platystoma is presently recorded across the main coastal drainages of the Guiana Shield, from the Sinnamary River, French Guiana, to the Essequibo River basin, Guyana, and is considered to be restricted to the region. Cteniloricaria napova is only known from its type locality at the headwaters of the Paru de Oeste River, Amazon basin, Sipaliwini Savannah, Trio Amerindian territory in Suriname, close to the Brazilian border. Based on a specimen of C. napova, captured in the Cuminapanema River, a tributary to the Curuá River, within Brazilian territory, the geographic distribution of the species and the genus is extended, representing the first record of Cteniloricaria in Brazil. The genus shows a disjoint distribution, and divergence between populations in the north-flowing coastal rivers of the Guianas and the south-flowing Amazon tributaries, and more recent headwater capture between south-flowing Amazon tributaries, may have played a key role in shaping its current distribution. Illustrations, diagnostic characters, morphometrics, description of the habitat where the new specimen was captured, extinction risk assessment, and a discussion of the distribution of the genus are provided.

Dactylogyrids (Platyhelminthes, Monogenoidea) from the gills of Hoplias malabaricus (Characiformes: Erythrinidae) from coastal rivers of the Oriental Amazon Basin: species of Urocleidoides and Constrictoanchoratus n. gen.

2017 ◽  
Vol 92 (3) ◽  
pp. 353-368 ◽  
Author(s):  
K.D.C. Ferreira ◽  
A.R.O. Rodrigues ◽  
J.-M. Cunha ◽  
M.V. Domingues
Keyword(s):  
New Species ◽  
Amazon Basin ◽  
Copulatory Organ ◽  
Ventral Anchor ◽  
Mato Grosso ◽  
Hoplias Malabaricus ◽  
The North ◽  
Coastal Rivers ◽  
Upper Paraná River Floodplain ◽  
Host Parasite

AbstractFive species of Urocleidoides (one new) and two new species of Constrictoanchoratus n. gen. are described in this study. All were collected from the gills of Hoplias malabaricus (Characiformes: Erythrinidae) captured in six localities of coastal rivers of the north-eastern sector the State of Pará (Oriental Amazon): Urocleidoides brasiliensis Rosim, Mendoza-Franco & Luque, 2011; Urocleidoides bulbophallus n. sp.; Urocleidoides cuiabai Rosim, Mendoza-Franco & Luque, 2011; Urocleidoides eremitus Kritsky, Thatcher & Boeger, 1986; Urocleidoides malabaricusi Rosim, Mendoza-Franco & Luque, 2011; Constrictoanchoratus lemmyi n. gen. n. sp.; and Constrictoanchoratus ptilonophallus n. gen. n. sp. This is the first reported occurrence of the four previously described species of Urocleidoides parasitizing H. malabaricus from streams in the Oriental Amazon Basin. The analysis of voucher specimens of U. eremitus parasitizing the gills of H. malabaricus from the Upper Paraná River floodplain in the limits of States of Paraná and Mato Grosso do Sul, Brazil, indicates that these specimens are members of a new species of Urocleidoides, described here as Urocleidoides paranae n. sp. Constrictoanchoratus n. gen. is proposed for the species with a male copulatory organ sclerotized, coiled, clockwise; ventral anchor with elongate superficial root, inconspicuous deep root; dorsal anchor with inconspicuous roots, and a constriction at the intersection between the shaft and the point. The host–parasite diversity scenario and host specificity of the species of Constrictoanchoratus n. gen. and Urocleidoides from the gills of H. malabaricus are also discussed in this study.

Range extension for three species of South American freshwater crabs (Crustacea: Decapoda: Trichodactylidae)

Zootaxa ◽  
2009 ◽  
Vol 1977 (1) ◽  
pp. 49-54 ◽  
Author(s):  
PABLO A. COLLINS ◽  
FEDERICO GIRI ◽  
VERÓNICA WILLINER
Keyword(s):  
Amazon Basin ◽  
New Records ◽  
Paraná River ◽  
South American ◽  
Crab Species ◽  
Southern South America ◽  
Parana River ◽  
The North ◽  
Freshwater Crabs ◽  
Middle Paraná

New sampling programs have extended the distribution of three species of freshwater crabs (family Trichodactylidae): Dilocarcinus septemdentatus and Sylviocarcinus pictus from the Amazon basin to southern South America, and S. australis, from the north of Argentina southwards. The three species are now found in the floodplain of the middle Paraná River (31°39'S, 60°45'W). The extension of their distribution is approximately 500 km and 2000 km further south. The number of freshwater crab species in the alluvial valley of the Paraná River has increased by 30% with these new records.

scholarly journals Further dismemberment of Discocyrtus with description of a new Amazonian genus and a new subfamily of Gonyleptidae (Opiliones, Laniatores)

2018 ◽  
Author(s):  
Rafael Carvalho ◽  
Adriano Kury
Keyword(s):  
Maximum Parsimony ◽  
Type Species ◽  
French Guiana ◽  
New Records ◽  
Maximum Parsimony Analysis ◽  
Parsimony Analysis ◽  
Ventral Plate ◽  
Diagnostic Features ◽  
Mato Grosso ◽  
Brazilian State

A group of Amazonian harvestmen is recognized and described as Amazochroma gen. nov. This taxon includes Discocyrtus carvalhoi Mello-Leitão, 1941 (type species), the only species of Discocyrtus previously thought to occur in Amazonia, and Amazochroma pedroi gen. et sp. nov., described here from the Brazilian states of Acre and Rondônia. New records are added for Amazochroma carvalhoi gen. et comb. nov, expanding its distribution from the Brazilian state of Mato Grosso northwards also to Pará and Amazonas in Brazil and additionally French Guiana and Suriname. Diagnostic features of Amazochroma gen. nov. include: trichromatic pattern of legs, dry marks on the dorsal scutum and base of legs and diastema in the row of macrosetae C of the penis ventral plate. A morphological maximum parsimony analysis (1022 scorings; 16 taxa; 64 characters) is performed to test whether Amazochroma gen. nov. is a member of Discocyrtus and if the traditional allocation of Discocyrtus in Pachylinae is defendable. A clade is retrieved containing three groups: (1) Mitobatinae, (2) Discocyrtus and (3) a clade containing Amazochroma gen. nov., Discocyrtanus and Roeweria, here described as a new subfamily of Gonyleptidae – Roeweriinae subfam. nov. Discocyrtanus Roewer, 1929 and Roeweria Mello-Leitão, 1923 are accordingly here transferred from Pachylinae to Roeweriinae subfam. nov.

scholarly journals Inventory of cyanobacteria and microalgae cited for the National Park of the Chapada dos Guimarães (MT) and 80 new records from the region

2018 ◽  
Vol 18 (2) ◽  
Author(s):  
Gisele Fernanda Pereira Assis ◽  
Samiris Pereira da Silva ◽  
Ludmylla Fernanda de Siqueira Silva ◽  
Regiane Luiza da Costa ◽  
Luany Weiler da Fonseca ◽  
...  
Keyword(s):  
National Park ◽  
New Records ◽  
Geographic Region ◽  
Aquatic Biodiversity ◽  
Mato Grosso ◽  
The North ◽  
West Region ◽  
Management Measures ◽  
Surrounding Areas ◽  
Collection Methods

Abstract: Cyanobacteria and microalgae make up a very diverse group and exhibit diverse morphological, biochemical and physiological differences. The knowledge of these organisms that inhabit epicontinental waters in Brazil is extremely heterogeneous in relation to the geographic region and the taxonomic group. Taxonomically there is much more knowledge about the algae of the South and Southeast regions of the country than there is about the algae of the North and Central-West regions. Therefore, this research presents a revised and updated knowledge of the algae that occur in the National Park of the Chapada dos Guimarães (PNCG) and surrounding areas. Our area of study is located in the state of Mato Grosso, in the center-west region of Brazil. The database was obtained from published literature related to taxonomic and ecological inventories, as well as new collections carried out in the area. The collection methods were quite diverse to cover all types of organisms, in plankton, periphyton, filamentous masses, sludge and water accumulated in bromeliads, the new collections are samples collected exclusively in the plankton. They were listed 182 taxa, distributed in 83 genera, 45 families, 11 classes and seven taxonomic divisions. In total, 89 taxa were found in the new samplings, of which nine taxa were already registered in the existing literature, so 80 taxa are new records for the region. A large number of taxa previously mentioned in the literature were not recorded in the sampled environments, most of them composed of Bacillariophyceae, Conjugatophyceae and Euglenophyceae. As well as three species of cyanobacteria of great sanitary importance were registered. Therefore, CGNP has great importance in the maintenance of aquatic biodiversity and to know this community becomes increasingly important to support management measures.

The impact of long-term mercury contamination on the new human exposure scenarios in the North Region of Mato Grosso, Amazon basin

2003 ◽  
Vol 107 ◽  
pp. 357-360
Author(s):  
de Souza Hacon ◽  
R. Aparecido de Farinas ◽  
R. Reis Argento ◽  
R. C. Campos ◽  
A. P. Rossi ◽  
...  
Keyword(s):  
Human Exposure ◽  
Amazon Basin ◽  
Mercury Contamination ◽  
Mato Grosso ◽  
The North ◽  
The Impact

scholarly journals Cucurbitaceae, Gurania Cogn., for southern Amazonia, Mato Grosso, Brazil

Check List ◽  
2012 ◽  
Vol 8 (2) ◽  
pp. 239
Author(s):  
Márcia Cléia Vilela-Santos ◽  
Luciane F. Barbosa ◽  
Natalie A. Coutinho ◽  
Marcelo H. O. Pinheiro ◽  
Domingos J. Rodrigues ◽  
...  
Keyword(s):  
New Records ◽  
The State ◽  
Permanent Plots ◽  
Mato Grosso ◽  
Central Brazil ◽  
The North ◽  
Southern Amazonia

We found six species of the genus Gurania that are described here as new records for the state of Mato Grosso, Central Brazil. The species of Gurania recorded here occur in the north of Mato Grosso state, Brazil in the biome recognized as “Floresta Amazônica”. This is an area of southern Amazonia that has been poorly inventoried. We carried out the surveys in permanent plots using the RAPELD-PPBio system and along trails giving access to the permanent plots.

scholarly journals Hydrolaetare schmidti (Cochran & Goin, 1959): new records for Amapá state, eastern Amazon and a geographic distribution map

Check List ◽  
2019 ◽  
Vol 15 (5) ◽  
pp. 815-819
Author(s):  
Janaina Reis Ferreira Lima ◽  
Jucivaldo Dias Lima ◽  
Jackson Cleiton Sousa ◽  
Silvia Helena de Oliveira ◽  
Carlos Eduardo Costa-Campos
Keyword(s):  
Geographic Distribution ◽  
New Record ◽  
National Park ◽  
Amazon Basin ◽  
French Guiana ◽  
New Records ◽  
Distribution Map

Hydrolaetare schmidti (Cochran & Goin, 1959) is 1 of 3 species of a genus that has a disjunctive distribution in the Amazon basin and is considered to be rare. Herein, we present the new records of H. schmidti from Amapá State, Brazil. This new record establishes the fifth known occurrence for H. schmidti and fills a gap of about 295 km in the distribution of the species, between Ouanari (French Guiana) and Tumucumaque Mountains National Park, Anacui River, municipality of Serra do Navio (Amapá).

A Synopsis of Dicliptera (Acanthaceae) in Brazil, with the Description of Two New Species

2020 ◽  
Vol 45 (2) ◽  
pp. 340-348
Author(s):  
James Lucas da Costa-Lima ◽  
Earl Celestino de Oliveira Chagas
Keyword(s):  
New Species ◽  
South America ◽  
The State ◽  
Northeastern Brazil ◽  
Mato Grosso ◽  
The North ◽  
New Synonyms ◽  
Two New Species ◽  
Mato Grosso Do Sul ◽  
A New Species

Abstract—A synopsis of Dicliptera (Acanthaceae) for Brazil is presented. Six species are recognized: Dicliptera ciliaris, D. sexangularis, and D. squarrosa, widely distributed in South America; D. purpurascens, which ranges from the North Region of Brazil (in the state of Acre) to eastern Bolivia; D. gracilirama, a new species from the Atlantic Forest of northeastern Brazil; and D. granchaquenha, a new species recorded in dry and semideciduous forests in Bolivia and western Brazil, in the state of Mato Grosso do Sul. Furthermore, we propose new synonyms and designate lectotypes for eleven names. An identification key to the six accepted Dicliptera species in Brazil is provided.

The immature stages of Smicridea (Rhyacophylax) gladiator Flint 1978 (Trichoptera: Hydropsychidae), with notes on distribution and bionomics

Zootaxa ◽  
2017 ◽  
Vol 4358 (2) ◽  
pp. 375
Author(s):  
GLEISON ROBSON DESIDÉRIO ◽  
ANA MARIA PES ◽  
NEUSA HAMADA ◽  
JORGE LUIZ NESSIMIAN
Keyword(s):  
Amazon Basin ◽  
New Records ◽  
Brazilian Amazon ◽  
First Record ◽  
Immature Stages ◽  
Life Stages ◽  
State Information ◽  
Amazonas State

Immature stages of many Brazilian Smicridea species remains unknown, and efforts to describe all life stages are required. In this paper, the larva and pupa of Smicridea (Rhyacophylax) gladiator Flint 1978, associated with adults through the metamorphotype method, are described and illustrated. In addition, the known distribution of this species is extended in the Brazilian Amazon Basin with new records from Amazonas state and the first record in Pará state. Information about its bionomics is also provided. 

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