Three new tardigrade species, Batillipes brasiliensis sp. nov., dandarae nov. and potiguarensis are described from shallow subtidal sediments of the Brazilian coast. B. have toes 3 4 on leg IV different in length, so they can be included D group while with equal length belong to A group. is characterized by having an ala-like caudal expansion; cuticular projections coxal region legs I-III, lateral projections. The projection located between third fourth fringed digit-shaped expansions. has a...

Five species of Batillipes Richters, 1909 were collected from subtidal sediments the Portuguese coast. Two them, B. algharbensis sp. nov. and lusitanus nov., are new to science. differs all other in having middle toes 3 on fourth feet longer than 4 by presence rounded lateral body projections between legs III IV. has equal length, but it exhibits a dorsal cuticular ornamentation, constituted large pillars, similar cuticle adriaticus Grimaldi de Zio, Morone De Lucia, D’Addabbo Gallo &...

Batillipes pennaki has been considered a common and cosmopolitan marine tardigrade species. However, the original diagnosis of this species is very incomplete, consequently there high probability incorrect records. Therefore, comparative analysis quantitative qualitative morphological characters among eight different populations from Atlantic basin was done in study to investigate if B. complex similar species, each with restricted distribution range. The result discriminant analyses showed...

O molusco Mytilopsis leucophaeta (Conrad, 1831), natural da América do Norte, foi localizado no litoral de Pernambuco, Brasil, em 2004, trazido provavelmente por água lastro navios. Na região, sua distribuição atualmente abrange zonas estuarinas adjacentes ao Porto Recife. Os organismos foram encontrados restritos à região entre-marés, formando agregados densos com até 176.800 ind./m².

The mussel Mytilopsis leucophaeta (Conrad, 1831) is native to North America. It was found at Pernambuco Coast, northeastern Brazil, in 2004, probably brought by ships’ ballast water. distribution of this species has been now spread estuarial area near Recife Harbour. They showed a clumped with maximum 176,800 ind./m 2 only the intertidal zone.

In studies developed in the mid- and infralittoral of Cupe Beach (Pernambuco), shallow Saint Peter Paul Archipelago, continental shelf northeastern Brazil, we recorded for first time Brazilian waters specimens Archechiniscus marci, Batillipes lesteri, Florarctus hulingsi, Halechiniscus tuleari, Angursa lingua, Raiarctus aureolatus, Actinarctus doryphorus doryphorus, Tanarctus dendriticus, velatus, Neoarctus sp. Neostygarctus sp., as well six other species that had been previously region....

Three new marine tardigrade species from the deep-sea genus Coronarctus are described South-Western Atlantic Ocean: dissimilis sp. nov., C. neptunus and yurupari nov. These, laubieri Renaud-Mornant, 1987, first records of tardigrades this region. Specimens those were collected two localities Brazilian continental slope (Potiguar Campos basins) at depths comprised between 150 3000 m. three have short cephalic appendages heteromorphic claws, belonging to the, here designated, tenellus group...

The phytal assemblages are known for sheltering an abundant and diversified meiofauna that is regulated by plant morphology, as well the quantity of sediment epiphytes quantity. In this work, influence Sargassum polyceratium morphology on quali-quantitative distribution was studied. Collections were done in August, November December 1999 January, March April 2000 four sites at Pedra do Xareu beach, Pernambuco. each site, three seaweeds removed one cut parts (basis, medium apex). comprised 22...

This work aimed to investigate the spatial and temporal distribution of Stygarctus bradypus Schulz, 1951 (Tardigrada, Heterotardigrada) in a sandy beach southern edge Itamaraca Island, 40 km north far from Recife (PE, Brazil). Samples were taken two different periods year characterized by dryness rain, along coastal transects through intertidal zone, during low tides. One identified 337 specimens bradypus. There was significant difference between populations S. steps beach, but not...

Populações de Batillipes pennaki Marcus, 1946 integrantes da meiofauna 3 estações em zona intermareal margem Sul ilha Itamaracá, litoral norte Pernambuco, localizadas entre 340 e 34o 52’ W 70 49’ S foram prospectadas, a fim se estimar suas variações espaço-temporais . O material bio-sedimentológico foi coletado por um ano cada meses durante as preamares baixa-mares.Valor máximo densidade ocorreu no médio-litoral superior arenoso preamar. Detectou-se ainda gradiente populacional negativo...

ABSTRACT Batillipes specimens collected in the Southwestern Atlantic Ocean, on Brazilian Coast (Campos Basin and Potiguar Basin) with a bifurcated caudal appendage similar to B. dicrocercus Pollock, 1970 were assigned potiguarensis Santos, da Rocha, Gomes Jr & Fontoura, 2017. This species was described as having roundish protrusion but, shown this study, it exhibits intraspecific variability of morphology apparatus. The examination from type locality (Massachussetts, U.S.A.) analysis...

-

Occurrence of

The abundance, distribution and morphometry of Ocypode quadrata (Fabricius, 1787) burrows were analyzed in twelve sandy beaches Pernambuco (NE- Brazil; 7o51’- 8o45’30” S; 34o49’ 35o06’ W), with different grades anthropic impact. This species is typical the supralittoral fringe, which are more impacted beach´s area due to recreational activities. density O. was higher at non-urban beaches, near strand line. burrow diameter increases land ward, strong correlation organic matter mass. analysis...