A new species of the scavenging lysianassid amphipod genus Waldeckia, W. bamberi sp. nov., is described from the Austral Isles, Society Isles, the first record of Waldeckia on the Pacific Plate.

Eighteen sandy beaches were sampled along the 1659 km of the Galician coast (NW Spain) six months after the Prestige oil-spill to study the impact of the fuel and the clean-up activities on the macroinfauna community. A transect was extended at each beach, from above the drift line to below the swash line at five sampled levels; at each level six 0.05 m2 replicates were taken to a depth of 30 c...

Large numbers of a distinctive trachymedusa were observed at 1967 m depth just above the bottom in Suruga Bay, Japan, during a dive by the crewed submersible Shinkai 2000 in April 2002. Two individuals were collected and proved to be an undescribed species, herein described as Voragonema tatsunoko sp. nov. This species is characterised by the number (9) and shape of the centripetal canals. An i...

A new talitrid amphipod species, Talorchestia qeshm sp. nov., is described from Qeshm Island in the south-eastern Persian Gulf. This is the westernmost confirmed record for Talorchestia and places the genus firmly in the western Indian Ocean.

Despite a rich taxonomic literature on the symbionts of ascidians, nature these symbioses remains poorly understood. In Egyptian Red Sea, solitary ascidian Phallusia nigra hosted symbiotic amphipod and four copepod species, with densities as high 68 mixed per host. Correlation analyses suggested no competition or antagonism between symbionts. Ascidian mass, ash-free dry mass wet (AFDM/WM), both...

A survey was caTied out of the aquatic fauna of the headwaters of two high-altitude 0170-1355 m) streams draining Mt Doris and two streams draining Mt Pelion East in Tasmania. Although the fauna above the treeline appeared to be characterised primarily by the loss of downstream. fama, three Trichoptera (Notoperata maculata, an unidentified genus from the Kokiriidae, and Plectrotarsus sp.) and o...

This study examines amphipod phylogeny based on small subunit (18S) rDNA sequence data. Complete sequences of 25 species representing six families were used to test the phylogenetic information content of this gene for reconstruction of amphipod phylogeny. The alignment proved to be informative for most of the studied taxa. The monophyly of the families Gammaridae, Crangonyctidae, Niphargidae a...