A remarkable new species of Multumbo showing sexual dimorphism, with the transfer of Multumbo and Piassagera to the Hernandariinae  (Opiliones, Gonyleptidae)

Zootaxa ◽  
2007 ◽  
Vol 1558 (1) ◽  
pp. 29-37 ◽  
Author(s):  
MARCIO B. DASILVA ◽  
ADRIANO B. KURY
Keyword(s):  
New Species ◽  
Sexual Dimorphism ◽  
Rio De Janeiro ◽  
Type Species ◽  
New Records ◽  
Southeastern Brazil ◽  
Monotypic Genus ◽  
Complex Scenario ◽  
A New Species ◽  
Janeiro State

A new species of Multumbo Roewer, 1927 (Gonyleptidae: Hernandariinae), M. dimorphicus sp. nov., is described from Rio de Janeiro state, southeastern Brazil. It presents sexual dimorphism in leg IV, contrasting remarkably with the type species of the hitherto monotypic genus Multumbo and the closest genera (Piassagera Roewer, 1928 and Pseudotrogulus Roewer, 1932), which were all thought to have lost this dimorphism. The presence of sexual dimorphism in M. dimorphicus implies a complex scenario of loss or reversal of this character. New records are given of type species of genus, Multumbo terrenus Roewer, 1913, for which a lectotype is designated. New diagnoses are provided for Hernandariinae and Multumbo. Multumbo and Piassagera are transferred from the Gonyleptinae to the Hernandariinae.Uma nova espécie de Multumbo Roewer, 1927, M. dimorphicus sp. nov., é descrita do estado do Rio de Janeiro. Ela apresenta dimorfismo sexual na perna IV, condição em notável contraste com a espécie-tipo do até então gênero monotípico Multumbo e com os gêneros mais relacionados, Piassagera Roewer, 1928 e Pseudotrogulus Roewer, 1932, nos quais esse dimorfismo era considerado como perdido. A presença de dimorfismo sexual em M. dimorphicus sugere um complexo cenário de perda ou reversão desse dimorfismo. Também foram incluídos novos registros da espécie-tipo do gênero, Multumbo terrenus Roewer, 1913, e um lectótipo é designado. Novas diagnoses para Hernandariinae and Multumbo são apresentadas. Multumbo e Piassagera são aqui transferidos de Gonyleptinae para Hernandariinae.

scholarly journals An unusual cryptogeobiid from southeastern Brazil revisited (Opiliones, Laniatores, Gonyleptoidea)

2021 ◽  
Vol 61 ◽  
pp. e20216194
Author(s):  
Adriano Brilhante Kury ◽  
Laura Regina Caramori
Keyword(s):  
Sexual Dimorphism ◽  
Rio De Janeiro ◽  
Type Species ◽  
Southeastern Brazil ◽  
Monotypic Genus ◽  
Eastern Brazil ◽  
Janeiro State

The monotypic genus Bunostigma Mello-Leitão, 1935 is herein revisited. A detailed redescription of its type-species, Bunostigma singulare Mello-Leitão, 1935 from Rio de Janeiro state, eastern Brazil, is herein presented, providing in depth knowledge of this genus. Bunostigma is most closely related to Cryptogeobius Mello-Leitão, 1935, and as this genus, it has a stout complex apophysis on male coxa IV, lacking, however, a second complex on the stigmatic area. Bunostigma has an oblique elongate malleus, similar to that of Zalanodius Mello-Leitão, 1936 (as opposed to a globular malleus in Cryptogeobius). Bunostigma singulare has short legs, with some sexual dimorphism on its stoutness, a dorsal scutum entirely unarmed and an ocularium with an accessory central mound, although unarmed.

scholarly journals Redescription of Hisonotus notatus Eigenmann & Eigenmann, 1889 (Loricariidae: Hypoptopomatinae), the type species of the genus, and description of a new species from coastal drainages of southeastern Brazil

2016 ◽  
Vol 14 (2) ◽  
Author(s):  
Fernanda O. Martins ◽  
Francisco Langeani
Keyword(s):  
New Species ◽  
Rio De Janeiro ◽  
Type Species ◽  
Southeastern Brazil ◽  
Espírito Santo ◽  
Type Series ◽  
Coastal Rivers ◽  
Espirito Santo ◽  
A New Species ◽  
Janeiro State

ABSTRACT Our analyses showed that the type series of Hisonotus notatus , type species of the genus, is mixed, composed by two different species. Based on that, we redescribe H. notatus with the designation of a lectotype, restricting the species to rio São João drainage and other small coastal drainages running to the Baía de Guanabara and to the Baía de Sepetiba in Rio de Janeiro State. We also describe a new species of Hisonotus from drainages of the rio Paraíba do Sul, Lagoa Feia, rio Macaé, and coastal rivers of Espírito Santo State, from rio Itabapoana to rio Doce basin. These two species are sister-taxa and can be distinguished by the number of plates in the mid-dorsal series.

scholarly journals A new species of the loricariid catfish genus Hemipsilichthys from southern Rio de Janeiro coastal rivers, southeastern Brazil (Teleostei: Siluriformes)

Zootaxa ◽  
2003 ◽  
Vol 285 (1) ◽  
pp. 1 ◽  
Author(s):  
EDSON H.L. PEREIRA ◽  
ROBERTO E. REIS ◽  
PABLO F.M. SOUZA ◽  
HENRIQUE LAZZAROTTO
Keyword(s):  
New Species ◽  
Rio De Janeiro ◽  
Close Relationships ◽  
Southeastern Brazil ◽  
Southern Coast ◽  
Dorsal Fin ◽  
Fin Ray ◽  
Coastal Rivers ◽  
A New Species ◽  
Janeiro State

Hemipsilichthys nimius, new species, is described from the upper Perequê-Açu River in Parati, in the southern coast of Rio de Janeiro State, southeastern Brazil. The new species is distinguished from the remaining 18 Hemipsilichthys species by modally having eight branched rays in the dorsal fin (vs. seven branched rays), by possessing a posteriorly expanded dorsal-fin membrane connecting the last dorsal-fin ray to the dorsum and, except from H. gobio and H. papillatus, by having teeth cusps equal in size (vs. small lateral cusp or unicuspid teeth in both dentary and premaxilla). From H. gobio and H. papillatus it is further distinguished by the larger orbital diameter and by its V-shaped dorsal-fin spinelet. Hemipsilichthys nimius shares with H. gobio and H. papillatus several characters that might be indicative of close relationships. These putative phylogenetic relationships are discussed.

scholarly journals A new species of Pacholenus Schoenherr from southeastern Brazil (Coleoptera, Curculionidae, Molytinae), and new occurrences of species of the genus

2008 ◽  
Vol 48 (30) ◽  
pp. 345-351 ◽  
Author(s):  
Sergio Antonio Vanin
Keyword(s):  
New Species ◽  
Rio De Janeiro ◽  
Sao Paulo ◽  
Southeastern Brazil ◽  
São Paulo ◽  
Widespread Species ◽  
Stem Gall ◽  
A New Species ◽  
New Occurrences ◽  
Janeiro State

A new species of Pacholenus Schoenherr from southeastern Brazil (Coleoptera, Curculionidae, Molytinae), and new occurrences of species of the genus. Pacholenus monteiroi sp. nov. (type-locality Brazil, Rio de Janeiro state, Carapebus, Parque Nacional da Restinga de Jurubatiba) is described and illustrated. The weevil develops as a stem gall-former in Calyptranthes brasiliensis Spreng (Myrtaceae). The new species is easily distinguished from the other five known of the genus by the presence of a prominent supra-ocular ridge. An updated key for identification for all species of Pacholenus is provided. Three species of Pacholenus are presently recorded for the states of Rio de Janeiro and São Paulo; P. pelliceus and P. monteiroi occur in both states, while P. penicillus is only known from Rio de Janeiro; P. hispidus occurs in São Paulo, being the most widespread species of the genus, ranging from Minas Gerais south to Santa Catarina.

The Neotropical spider genus Paradossenus (Araneae, Trechaleidae): a new species, taxonomic notes and new records

Zootaxa ◽  
2011 ◽  
Vol 2781 (1) ◽  
pp. 63
Author(s):  
ESTEVAM L. CRUZ DA SILVA ◽  
ARNO A. LISE
Keyword(s):  
New Species ◽  
Type Species ◽  
New Records ◽  
Junior Synonym ◽  
Monotypic Genus ◽  
Northern Brazil ◽  
First Time ◽  
A New Species

The male of Paradossenus pulcher Sierwald, 1993 and a new species, P. macuxi, from Roraima, Northern Brazil are described and illustrated for the first time. The monotypic genus Magnichela Silva & Lise, 2006 is a junior synonym of Paradossenus F.O. Pickard-Cambridge, 1903. Paradossenus amazonensis Carico & Silva, 2010 is a junior synonym of Magnichela santaremensis Silva & Lise, 2006 (type species). New data on the Brazilian distributions of Paradossenus acanthocymbium Carico & Silva, 2010, P. tocantins Carico & Silva, 2010 and P. pozo Carico & Silva, 2010 are presented.

scholarly journals A new species of the catfish Neoplecostomus (Loricariidae: Neoplecostominae) from a coastal drainage in southeastern Brazil

2016 ◽  
Vol 14 (4) ◽  
Author(s):  
Arieli Matheus Cherobim ◽  
◽  
Henrique Lazzarotto ◽  
Francisco Langeani ◽  
Keyword(s):  
New Species ◽  
Rio De Janeiro ◽  
Color Pattern ◽  
Southeastern Brazil ◽  
Main Body ◽  
A New Species ◽  
Janeiro State

ABSTRACT A new species of loricariid catfish is described from the rio Perequê-Açú and surrounding basins, Parati, Rio de Janeiro State. The new species has the accessory process of ceratobranchial 1 more slender than the main body of the ceratobranchial, and a very large sesamoid ossification, markedly greater in size than the interhyal. Additionally, the new species presents a distinct dorsal color pattern consisting of a conspicuous horseshoe shaped light blotch with a central dark area posterior to the supraoccipital.

A new species of Anaulacomera Stål, 1873 (Orthoptera, Tettigoniidae, Phaneropterinae) from Parque Nacional de Itatiaia, Southeastern Brazil

Zootaxa ◽  
2021 ◽  
Vol 4995 (1) ◽  
pp. 173-178
Author(s):  
ANDRÉ FONSECA ANTUNES ◽  
DANIELA MAEDA TAKIYA
Keyword(s):  
New Species ◽  
Rio De Janeiro ◽  
Abdominal Tergite ◽  
Valid Species ◽  
Southeastern Brazil ◽  
Brazilian Species ◽  
A New Species ◽  
Janeiro State ◽  
Shape And Size

Anaulacomera currently contains 147 valid species, of those 50 are recorded from Brazil. The genus is further divided into six subgenera, which can be distinguished on characteristics of the male terminalia. A new Brazilian species is presently proposed, Anaulacomera (Anallomes) curvata sp. nov., based on three males and one female collected at Parque Nacional de Itatiaia, Itatiaia, Rio de Janeiro State. It can be distinguished from all other species because of the pair of cerciform projections of the tenth male abdominal tergite and a combination of shape and size of the male cerci.  

A new species of Poecilanthe (Leguminosae, Papilionoideae, Brongniartieae) from Southeastern Brazil 

Phytotaxa ◽  
2013 ◽  
Vol 116 (2) ◽  
pp. 57 ◽  
Author(s):  
JOSE EDUARDO MEIRELES ◽  
HAROLDO CAVALCANTE DE LIMA
Keyword(s):  
New Species ◽  
Rio De Janeiro ◽  
Southeastern Brazil ◽  
Legume Species ◽  
A New Species ◽  
Janeiro State

A new legume species from Southeastern Brazil, Poecilanthe fluminensis, is described and illustrated. It is readily distinguished from the remaining species of the genus by a combination of exclusively unifoliolate leaves with very short petioles (5–9 mm long), red calyx, and strongly dimorphic anthers (short anthers less than ¾ of the length of the longer ones). The new species, P. fluminensis, appears to be endemic to Rio de Janeiro State, Southeastern Brazil.

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