scholarly journals Fishes from the Jaru Biological Reserve, Machado River drainage, Madeira River basin, Rondônia State, northern Brazil

2017 ◽  
Vol 17 (1) ◽  
Author(s):  
Igor David Costa ◽  
◽  
Willian Massaharu Ohara ◽  
Missilene Almeida ◽  
Keyword(s):  
New Species ◽  
River Basin ◽  
Conservation Unit ◽  
The Third ◽  
The Family ◽  
Madeira River ◽  
Northern Brazil ◽  
A New Species ◽  
Madeira River Basin ◽  
Biological Reserve

Abstract: This work assessed freshwater fishes collected at 12 stations located along the Tarumã River, middle Machado River, Madeira River basin. The fieldwork took place in May and September 2015 during the high and low water seasons, respectively. We gathered 1,482 specimens representing seven orders, 30 families, 54 genera and 74 species using seine, gill, and hand nets. The family Characidae was the most representative, exhibiting the highest number of species captured. The species with the greatest abundance were Hemigrammus vorderwinkleri, Hyphessobrycon bentosi, Hemigrammus cf. bellottii, Bryconella pallidifrons, and Apistogramma resticulosa. Two species that remained unidentified are probably a new species. This study represents the third fish survey totally conducted at a Conservation Unit in the Rondônia State, and will certainly provide valuable information for future investigations on biodiversity conservation in the Machado River.

scholarly journals A new species of Pilarella (Copepoda, Calanoida, Arietellidae) from the hyperbenthic layer of Japan, with a molecular phylogenetic analysis of some representative genera of the Arietellidae

ZooKeys ◽  
2021 ◽  
Vol 1038 ◽  
pp. 179-194
Author(s):  
Sota Komeda ◽  
Kenta Adachi ◽  
Susumu Ohtsuka
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Molecular Phylogenetic Analysis ◽  
Posterior Border ◽  
The Third ◽  
The Family ◽  
Molecular Phylogenetic ◽  
New Diagnosis ◽  
Caudal Rami ◽  
A New Species

A new species of the continental shelf hyperbenthic genus Pilarella is described, the first from the Indo-Pacific. This is the second species of Pilarella known, and the first description of a male in the genus. The new species is easily distinguished from other species of Pilarella (P. longicornis) based on: (1) short caudal rami, approximately 1.5 times longer than wide; (2) 2 setae on the mandibular endopod; (3) 6 setae on the maxillular coxal epipodite; and (4) in the female, a short left antennule reaching the posterior border of the genital double-somite. The new diagnosis of Pilarella differs from Metacalanus in the separation of ancestral segments IX–XII and XIV–XV of the antennule, and the presence of 5–6 setae on the maxillular praecoxal arthrite. Pilarella is also separated from Metacalanalis based on the absence of a seta on the third ancestral segment of the antennary exopod, the symmetry of legs 1–3, the presence of a medial basal seta on the female leg 5, and 2 lateral exopodal spines on the female leg 5. A molecular phylogenetic analysis of some representative genera of the family Arietellidae, including the present new species, recovers two arietellid clades (Metacalanus- and Arietellus-clades) as in previous studies. Dichotomous keys for the genera of Arietellidae and the species of Pilarella are included.

scholarly journals Fish, Marmelos Conservation Area (BX044), Madeira River basin, states of Amazonas and Rondônia, Brazil

Check List ◽  
2007 ◽  
Vol 3 (4) ◽  
pp. 291 ◽  
Author(s):  
Mauricio Camargo ◽  
Tommaso Giarrizzo
Keyword(s):  
River Basin ◽  
Fish Species ◽  
Ecological Assessment ◽  
Aquatic System ◽  
Species List ◽  
Conservation Area ◽  
Madeira River ◽  
Northern Brazil ◽  
Rapid Ecological Assessment ◽  
Madeira River Basin

The present study provides a species list of fish from the Marmelos River Area – BX044 in the states of Amazonas and Rondônia in northern Brazil. During a Rapid Ecological Assessment (REA) performed in October and November of 2003, 133 fish species from six orders and 24 families were recorded. The most diverse families were Characidae (47 species), Cichlidae (15 species), Loricariidae (12 species) and Pimelodidae (7 species). 23 fish species were common to the entire river basin and 4 were endemic to the aquatic system studied.

A new species of Behningia Lestage, 1929 (Ephemerotera: Behningiidae) from China

Zootaxa ◽  
2019 ◽  
Vol 4671 (3) ◽  
pp. 420-426
Author(s):  
XIONGDONG ZHOU ◽  
MIKE BISSET ◽  
MENGZHEN XU ◽  
ZHAOYIN WANG
Keyword(s):  
New Species ◽  
Yunnan Province ◽  
The Third ◽  
The Family ◽  
Biogeographic Region ◽  
Nujiang River ◽  
A New Species ◽  
Burrowing Mayfly

A new species of sand-burrowing mayfly (Ephemeroptera: Behningiidae), Behningia nujiangensis Zhou & Bisset, is described based on more than 50 nymphs collected from the Nujiang River in Yunnan Province, P.R. China. This is the first species of the family Behningiidae discovered in China. It is also the second species of genus Behningia, and the third species of the family Behningiidae collected from the Oriental biogeographic region. The shapes of the labrum and the labium in B. nujiangensis are markedly different from those found in other species of Behningia. Differences in the mandibles, the galea-lacina of maxillae, and both the prothoracic and metathoracic legs differentiate B. nujiangensis from both B. baei and B. ulmeri. The biology of and conservation challenges for B. nujiangensis are also briefly discussed. 

scholarly journals Triplodon chodo, a new species of pearly fresh water mussel from the Amazon Basin (Mollusca: Bivalvia: Unionoida: Hyriidae)

2008 ◽  
Vol 25 (1) ◽  
pp. 111-115 ◽  
Author(s):  
Maria C. D. Mansur ◽  
Daniel M. Pimpão
Keyword(s):  
New Species ◽  
Amazon Basin ◽  
Shell Height ◽  
Anterior Region ◽  
Obtuse Angle ◽  
Madeira River ◽  
Amazonas State ◽  
The Guianas ◽  
A New Species ◽  
Madeira River Basin

A new species of the genus Triplodon Spix, 1827 is described based on shell samples collected on Rivers Jamari (Rondônia State) and Aripuanã (Amazonas State) from the Madeira River Basin; on the Amazon at Oriximiná and on the mouth of Tapajós River at Alter do Chão (Pará State). Triplodon chodo is a new species considered closely related to T. stevensi Lea, 1871, (described from the part of the River Essequibo which borders the Guianas). Triplodon chodo is distinguished from the latter by its smaller, lighter shell, the absence of a wing in the anterior region and by the delicate shape of the external sculpture, which is composed of minuscule nodules organized in rows that converge and crosses on the centre of the valves. The straight and vertical posterior margin forms a right or slightly obtuse angle with the shell's dorsal and ventral margins. The anterior region is short, low and slightly tapering, with the distal extremity situated on the half of the shell height. The dorsal and ventral margins are equally curved.

Steinia Australis, A New Species in the Lichen Family Aphanopsidaceae

1999 ◽  
Vol 31 (6) ◽  
pp. 555-558 ◽  
Author(s):  
G. Kantvilas ◽  
P. M. McCarthy
Keyword(s):  
New Species ◽  
The Third ◽  
The Family ◽  
A New Species

AbstractSteinia australis Kantvilas & P. M. McCarthy is described, based on a specimen from Tasmania. The new species, the second in the genus and only the third in the family Aphanopsidaceae, differs from S. geophana by its larger ascospores, well-developed exciple and scurfy, leprose thallus.

scholarly journals A new species of Novamundoniscus Schultz, 1995 (Isopoda, Oniscidea, Dubioniscidae) from the state of Tocantins, Brazil

2018 ◽  
Vol 58 ◽  
pp. e20185860
Author(s):  
Ivanklin Soares Campos-Filho ◽  
Giovanna Monticelli Cardoso ◽  
José Otávio Aguiar
Keyword(s):  
New Species ◽  
First Record ◽  
The State ◽  
The Family ◽  
Northern Brazil ◽  
A New Species

The genus Novamundoniscus includes eight species with distribution in Brazil and Venezuela. The new species Novamundoniscus adhara Campos-Filho & Cardoso sp. nov. from the state of Tocantins, northern Brazil, is described, which represents the first record to the family for the state of Tocantins.

scholarly journals Checklist of the fishes from Jamari River basin, in areas under influence of dams, Rondônia, Brazil

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Rianne Caroline de Oliveira ◽  
Gabriel de Carvalho Deprá ◽  
Cláudio Henrique Zawadzki ◽  
João Carlos Barbosa da Silva ◽  
Weferson Júnio da Graça
Keyword(s):  
New Species ◽  
River Basin ◽  
Hydroelectric Power Plant ◽  
Hydroelectric Power ◽  
Small Hydropower ◽  
Hydropower Plants ◽  
Madeira River ◽  
Area Of Influence ◽  
Taxonomic Groups ◽  
Madeira River Basin

Abstract: The Madeira River is the most extensive tributary of the Amazon River and has the largest diversity of fishes in the world. On its right bank, the Madeira River receives the Jamari River, in which the first hydroelectric power plant (HPP) in State of Rondônia, Samuel HPP, was built. Besides this, other dams were built in the Jamari River and its tributaries, however, the available information in the scientific literature about the ichthyofaunistic diversity of this basin is rare. This work aims to provide an ichthyofaunistic inventory in a region of the Jamari river basin, in the State of Rondônia, where three small hydropower plants (SHPs) were implemented. The ichthyofauna was sampled in 16 expeditions between August 2015 and December 2018. Gill nets and seine nets were used with different meshes, as well as longlines and cast nets at different times of the day. Additionally, 81 INPA lots of species from the Samuel HPP area of influence were reanalyzed. Fish were identified according to the specialized literature, as well as in consultations with experts of various taxonomic groups. Voucher specimens of the species were cataloged and deposited in the ichthyological collection of the Núcleo de Pesquisas em Limnologia, Ictiologia e Aquicultura (Nupélia) of the Universidade Estadual de Maringá. A total of 230 species were recorded, of which 22 were putative new species, 117 were added to the Jamari River basin and 28 to the Madeira River basin. The continuation of the studies in this section of the Jamari river basin is fundamental for analysis of local impact due to the presence of dams. Moreover, the addition of putative new species to the Madeira River basin indicates gaps in the knowledge of Neotropical ichthyofauna.

A new species of Psyllipsocus (Psocodea: Trogiomorpha: Psyllipsocidae) from the mid-Cretaceous amber of Myanmar

Zootaxa ◽  
2021 ◽  
Vol 5072 (1) ◽  
pp. 81-87
Author(s):  
FEIYANG LIANG ◽  
XINGYUE LIU
Keyword(s):  
New Species ◽  
Present Finding ◽  
Burmese Amber ◽  
The Third ◽  
The Family ◽  
A New Species

A new psocodean species of the family Psyllipsocidae, namely Psyllipsocus yangi sp. n., is described from the Burmese amber. This is the third species of Psyllipsocus from the Burmese amber and is the first Cretaceous Psyllipsocus species with a conical sensillum in mx2. Detailed description of the characters of mouthparts and genitalia are provided. The present finding suggests that Sinopsyllipsocus is a probable synonym of Psyllipsocus.  

Sign in / Sign up

Export Citation Format

Share Document