The cyanobacterial genus Cyanoarbor Wang (Chroococcales, Entophysalidaceae) and its occurrence in Brazil

The new cyanobacterial species Cyanoarbor violascens was found and described from subaerophytic habitats (wet lateritic soils) in the northwest region of São Paulo State, Brazil. The phenotypic generic features of the population were confirmed and the genus Cyanoarbor Wang 1989 was revised with four species recognized. Cyanoarbor rupestris Wang was first described from subaerophytic habitats in China. Cyanoarbor violascens Branco sp. nov. is here described from subaerophytic habitats (wet lateritic soils) in the northwest region of São Paulo State, Brazil, differing from other species by violet-coloured sheaths, cell sizes and ecotopic preference. Additionally, material previously identified as Chlorogloea cf. microcystoides from Nepal was recognized as belonging to Cyanoarbor and is here described as C. himalayensis M. Watanabe et Komdrek sp. nov. Chlorogloea gessneri Schiller is transferred to the genus Cyanarbor, as C. gessneri (Schiller) nov. comb. All four species can be differentiated based on a combination of morphological characters and biotopic preferences. Descriptions and an identification key of the four species of this genus are provided.

New occurrence of the rare genus Doliocatella (Stigonematales, Cyanophyceae)

A new occurrence of the genus Doliocatella (Cyanophyceae, Cyanobacteria) is reported. The type species of the genus, D. formosa, is described from a stream of the tropical Amazonian rainforest (Manaus, Amazonas State, Brazil). A detailed taxonomic description with photomicrographs and ecological characteristics are provided based on the three worldwide species records. D. formosa is characterized by the presence of uniseriate main filaments, cylindrical branches, and mostly cylindrical cells; heterocytes are absent. D. formosa occurs under limited and special conditions, i.e. habitats with low pH and relatively high temperatures. The species has a restricted ecological distribution, limited to tropical lotic ecosystems, but it is found over a relatively wide geographical range.

Rhinolekos, a new genus with three new species of Hypoptopomatinae (Siluriformes: Loricariidae) from upper rio Paraná

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Cladistic analysis of Charterginus Fox, 1898 (Hymenoptera, Vespidae, Epiponini). A neotropical genus of social wasps

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

A NEW SPECIES of THE FEATHER MITE GENUS COTINGODECTES and A NEW GENUS of PTERODECTINAE (ASTIGMATA: PROCTOPHYLLODIDAE)

In this paper a second species of the feather mite genus Cotingodectes Valim and Hernandes, C. breviphallus n. sp., is described from Rupicola rupicola (Passeriformes, Cotingidae) in Brazil. A new genus, Berladectes, is erected to accommodate Dolichodectes neotropicus Hernandes and Valim.

A PHYLOGENETIC ANALYSIS of SYNOECA DE SAUSSURE, 1852, A NEOTROPICAL GENUS of SOCIAL WASPS (HYMENOPTERA: VESPIDAE: EPIPONINI)

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Suitability of DNA extracted from archival specimens of fruit-eating bats of the genus Artibeus (Chiroptera, Phyllostomidae) for polymerase chain reaction and sequencing analysis

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

A new Coniacian-Santonian conchostracan genus from the Bauru Group, south-east Brazil: Taxonomy, palaeobiogeography and palaeoecology

Abundant conchostracans occur in Coniacian-Santonian dark grey, argillaceous, lacustrine sediments of the Sao Carlos Formation, Bauru Group, Parana Basin, in the central part of São Paulo State, south-east Brazil. They are ascribed to a new genus and species, Bauruestheria sancarlensis, included in the family Jilinestheriidae. The new taxon is similar to some Late Cretaceous species from China and Mongolia. It probably evolved from a Late Jurassic-Early Cretaceous ancestral form (Migransia), which first lived in West Gondwana, and later dispersed to Europe and Asia, originating distinct parallel lineages with increasing ornamental complexity. The conchostracans probably lived in oxygenated marginal areas of a very calm, perennial lake with an anoxic bottom, and were transported in suspension to the depositional site by weak turbidity currents or storm-induced flows. Great concentrations of juvenile conchostracans in some thin layers can be related to mass mortality, episodes caused by convection and dispersion of anoxic water during storms. (c) 2005 Elsevier Ltd. All rights reserved.

A new genus of dipnoiformes from the Cretaceous of Brazil

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Pulmonary, microbiological and hematological changes in Crotalus durissus terrificus (Serpentes, Viperidae) parasitized by nematodes of the genus Rhabdias (Nematoda, Rhabdiasidae)

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Adelosgryllus rubricephalus: a new genus and species of cricket (Orthoptera: Phalangopsidae)

Um novo gênero e espécie de grilo falangopsídeo Adelosgryllus rubricephalus é descrito. Ilustrações de espécimes macho e fêmea e a descrição dos escleritos fálicos, assim como os cromossomos e a distribuição geográfica conhecida são relatados. Uma discussão sobre a posição taxonômica desse grilo dentro da família Phalangopsidae é incluída.

A review of some south american species of jumping spiders (Araneae: Salticidae) described by Mello-Leitão from Brasil, with resolution of the genus Asaphobelis

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Description and relationships of Otothyropsis marapoama, a new genus and species of hypoptopomatine catfish (Siluriformes: Loricariidae) from rio Tietê basin, southeastern Brazil

Otothyropsis marapoama, novo gênero e espécie, é descrito baseado em espécimes recentemente coletados em um riacho de cabeceira da porção media do rio Tietê, um rio da bacia do alto rio Paraná no sudeste do Brasil. O novo táxon pertence a um clado que inclui também os gêneros Schizolecis, Otothyris e Pseudotothyris. Otothyropsis marapoama é considerado o grupo-irmão de Pseudotothyris e Otothyris baseado principalmente na presença de vários caracteres derivados da cápsula da bexiga natatória e ossos associados. Vários caracteres pedomórficos compartilhados por Pseudotothyris e Otothyris e seu significado filogenético para a posição deste novo gênero são discutidos.