The present study focused on redescription of Gammarus pseudosyriacus (Karaman & Pinkster, 1977) based on new materials from Zagros Mountains and describes a new subspecies of freshwater amphipod, Gammarus pseudosyriacus issatisi subsp. n., from the southern Zagros Mountains. The work is based on morphological and morphometric comparisons. This new subspecies has features similar to Gammarus ps...

Two new lysianassoid amphipod species, Ambasia anophthalma n. sp. and Bathyamaryllis biscayensis n. sp., are described based on adult females collected in the North Eastern Atlantic Ocean (Bay of Biscay) by an autonomous bait system deployed on the sea bottom at a depth of 1460-1550 m. These two species are characterized by the absence of eyes (blind species). They belong to genera which includ...

The amphipod family Pardaliscidae has a worldwide distribution and is considered to be especially common in the deep sea. This is the first record of the genus Nicippe in New Zealand waters and a new species, N. rogeri sp. nov is described in honour of Dr. Roger Bamber. This brings the number of species in the genus Nicippe worldwide to four. The new species is described in detail and a key to ...

Thirteen species of amphipod in the families Dexaminidae (1), Eusiridae (1), Hyalidae (1), Ischyroceridae (1), Leucothoidae (8) and Lysianassidae (1) are recorded from Palau in Micronesia. Of these, Ventojassa palauensis sp. nov., Leucothoe beobeldabensis sp.nov., L. pseudepidemos sp. nov., L. serratissima sp. nov., L. tumida sp. nov., L. whiteae sp. nov and Paranamixis dentidactylus sp. nov. a...

Comparative analysis of the 16S rRNA gene and fluorescent in situ hybridization (FISH) was used to identify epibiotic filamentous bacteria living on the marine amphipod crustacean Urothoe poseidonis. The epibionts belong to the gamma proteobacteria and represent a novel marine phylotype within the genus Thiothrix. FISH and denaturing gradient gel electrophoresis revealed that the Thiothrix fila...

A new species of lysianassid amphipod belonging to the genus Cheirimedon was collected on the continental slope of the Campos Basin, the largest oil reserve in Brazilian waters. This is the first record of the genus Cheirimedon from the Atlantic Ocean, which was previously restricted to the Antarctic and Tasmanian sea. The new species is fully illustrated and compared with related species. Addi...

This study aims to determine the effect of amphipod density on growth, survival and molting mangrove crabs (Scylla tranquebarica).The research was conducted in Installation Tiger Shrimp Hatchery (ITSH), located Lawallu Village, Soppeng Riaja District, Barru Regency, South Sulawesi, from May June 2022. There 45 crabs, with an average weight 0.04 ± 0.005 g a carapace width 5.4 0.1 mm which were o...

The first species of falklandellid amphipod outside the Falkland Islands: Osornodella gabrielae n. gen., n. sp. is described from freshwaters of subterranean origin in the Coastal Range of Osorno province, Chile. The new taxon is characterized principally by the absence of secondary sexual characters in pereopods 3-4, uropod 3 aequiramous and telson slightly cleft. The new species is described ...

The subtle effects of sea water acidification on the amphipod Gammarus locusta C. Hauton, T. Tyrrell, and J. Williams School of Ocean and Earth Science, University of Southampton, National Oceanography Centre, European Way, Southampton, Hants, SO14 3ZH, UK Received: 17 November 2008 – Accepted: 17 November 2008 – Published: 15 January 2009 Correspondence to: C. Hauton ([email protected]) Pub...