The family Histriobdellidae (Annelida, Polychaeta) including descriptions of two new species from Brazil and a new genus

We review the family Histriobdellidae and provide species descriptions and notes on geographical distribution based on data from the literature. The morphological structures used in the systematics of this family are defined. A new genus, Dayus, is proposed and two new species from Brazil, Stratiodrilus robustus and S. circensis, are described.6829510

Morphometric study of the nereidid Laeonereis acuta (Annelida : Polychaeta)

In order to find the Most suitable parameter for measuring the nereidid Laonereis acuta, correlations between total length or weight and eight morphological measurements: width of prostomium and 2nd, 6th, 13th and 19th setigers, length of the prostomium, length through segment 6th and length through segment 13th, were established. The width measurements showed the highest values of r, and were the most reliable indicators of size. Comparisons between weight and morphological measurements showed a similar pattern as well its negative allometric growth.o TEXTO COMPLETO DESTE ARTIGO, ESTARÁ DISPONÍVEL À PARTIR DE AGOSTO DE 2015.81342342

New species of the scale worm genus Pholoe (Polychaeta: Pholoidae) from southeast Brazil

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Exploration of poorly known regions of the Brazilian coast has resulted in the discovery of a new species in the scale worm family Pholoidae. Pholoe microantennata sp. nov. occurs at the Campos Basin (states of Espirito Santo and Rio de Janeiro) and along the northern coast of Sao Paulo State. It differs from other species in the genus because it has numerous large and conical marginal papillae on the elytra and two small lateral antenna attached to the distal portion of the prostomium. The family Pholoidae remains species-poor compared with most polychaete families, and it currently comprises 24 species worldwide. In Brazil, only three species of this family have been recorded.37105485497Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)CENPES/PETROBRASFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq

Stratiodrilus (Annelida: Polychaeta: Histriobdellidae) associated with a freshwater decapod, with the description of a new species

A new species of Histriobdellidae (Annelida; Polychaeta) from Brazil, belonging to the genus Stratiodrilus (commensal polychaete) is described. Stratiodrilus arreliai is distinguished by the characteristics of the body appendages, and mandible apparatus as well as by its biogeographical distribution. A brief discussion is made on the association between the genus Stratiodrilus and the anomuran genus Aegla.110347147

Spatial distribution of annelids in the intertidal zone in Sao Sebastiao Channel, Brazil

We studied the spatial distribution of annelids in the intertidal zone of two beaches (Engenho d'Agua and Sao Francisco) in Sao Sebastiao Channel, southeastern Brazil, from August 1995 through July 1996. This region is commonly affected by oil spills and sewage waste. The substratum of the two beaches is composed of a mixture of sand and rock fragments. We established three levels (100 m(2)) in the intertidal zone of each study sited lower, intermediate, and upper. In general, species richness increased from upper towards lower levels. The distribution of species at Engenho d'Agua was more homogeneous than at Sao Francisco. Only some individual spatial patterns were recognised at Sao Francisco. The most abundant polychaete species at Engenho d'Agua (Nematonereis hebes, Timarete filigera, and Scyphoproctus djiboutiensis) occurred in the intermediate and lower levels. The upper level of Sao Francisco was characterised by a peak of opportunists, with a large number of individuals but few dominant species (Capitella sp., Scolelepis squamata, Laeonereis acuta, and the oligochaete Tubifex sp).65432333

Anelideos Poliquetos Associados A Um Briozoario. 1. Eunicidae, Lumbrineridae, Lysaretidae E Dorvilleidae

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