Do circum-Antarctic species exist in peracarid Amphipoda? A case study in the genus Epimeria Costa, 1851 (Crustacea, Peracarida, Epimeriidae)

  title={Do circum-Antarctic species exist in peracarid Amphipoda? A case study in the genus Epimeria Costa, 1851 (Crustacea, Peracarida, Epimeriidae)},
  author={Anne Loerz and Elizabeth W. Maas and Katrin Linse and Charles Oliver Coleman},
The amphipod genus Epimeria is species rich in the Southern Ocean and at present eight of its 19 species are reported with circum-Antarctic distributions. For the first time, specimens of epimeriid species from the Antarctic Peninsula, the Weddell Sea and the Ross Sea were analysed using partial COI genes sequences and morphological characters. In total 37 specimens of 14 species of Epimeria and two species of Epimeriella were analysed and the resulting molecular topology checked by critically… 
Epimeria of the Southern Ocean with notes on their relatives (Crustacea, Amphipoda, Eusiroidea)
The present monograph includes general systematic considerations on the family Epimeriidae, a revision of the genus Epimeria Costa in Hope, 1851 in the Southern Ocean, and a shorter account on
A new deep-water species of Epimeria (Amphipoda: Gammaridea: Epimeriidae) from the continental slope of western Mexico
A new species of deep water Epimeria is described based on material collected in 1526–1586 m depth during the TALUD X expedition in the central Gulf of California, Mexico. It is the sixth species of
High genetic diversity within Epimeria georgiana (Amphipoda) from the southern Scotia Arc
The results on the high genetic divergences in epimeriid amphipods support the theory of the southern Scotia Arc being a centre of Antarctic diversification and the description of Epimeria angelikae, a species new to science.
A genetic fingerprint of Amphipoda from Icelandic waters – the baseline for further biodiversity and biogeography studies
The findings from the IceAGE collecting expeditions highlight the necessity of supporting molecular studies with thorough morphology species analyses with thorough taxonomic research.
A new species of Cymodoce Leach, 1814 (Crustacea: Isopoda: Sphaeromatidae) based on morphological and molecular data, with a key to the Northern Indian Ocean species.
Analysis of DNA barcodes and nuclear 28S rDNA: D8 expansion segments clearly support the existence of two distinct species of Cymodoce waegelei sp.
First Molecular Evidence for Underestimated Biodiversity of Rhachotropis (Crustacea, Amphipoda), with Description of a New Species
DNA barcoding of new material from around New Zealand and the Ross Sea indicated depth-related biogeographic patterns, and molecular and morphological investigations of Rhachotropis specimens from the Chatham Rise, New Zealand revealed a species new to science which is described in detail, including scanning electron microscopy, increasing the number of described species to 60 worldwide.
Nuclear and Mitochondrial Gene Data Support Recent Radiation within the Sea Spider Species Complex Pallenopsis patagonica
The climate history of the Antarctic continental shelf has formed a diverse benthic ecosystem over evolutionary time scales and different biological processes seem to have led to fast and stable species boundaries in P. patagonica as opposed to C. megalonyx where hybridization even across major mitochondrial lineages was still possible.
Pacific Epimeriidae (Amphipoda: Crustacea): Epimeria
  • A. Lörz
  • Biology
    Journal of the Marine Biological Association of the United Kingdom
  • 2010
A new species was found from the Tasman Sea at a depth of 12 m depth and described in detail, increasing the number of Pacific Epimeria species to ten.
Contrasting morphological and DNA barcode-suggested species boundaries among shallow-water amphipod fauna from the southern European Atlantic coast.
DNA barcode-suggested species boundaries with morphology-based species identifications in the amphipod fauna of the southern European Atlantic coast are compared and deep divergence among specimens of seven species from Portugal is found compared to those from the North Sea and Italy.


Phylogeny of Antarctic Epimeria (Epimeriidae: Amphipoda)
  • A. Lörz, A. Brandt
  • Biology, Environmental Science
    Journal of the Marine Biological Association of the United Kingdom
  • 2004
Amphipoda belong to the most abundant benthic organisms of Antarctica, the Epimeriidae being one of the most dominant families, and high intraspecific variation was observed, which may indicate recent speciation of some Antarctic epimeriids.
Epimeria schiaparelli sp. nov., an amphipod crustacean (family Epimeriidae) from the Ross Sea, Antarctica, with molecular characterisation of the species complex
Epimeria schiaparelli can be distinguished from the most similar species, E. similis Chevreux, 1912 and E. macrodonta Walker, 1906 by a relatively short rostrum and a short second pereonite amongst other characters.
Distinguishing cryptic species in Antarctic Asellota (Crustacea: Isopoda) - a preliminary study of mitochondrial DNA in Acanthaspidia drygalskii
The molecular data support the monophyly of all six species analysed, but there is only limited evidence for the interspecific relationships between the species.
Multiple lineages and absence of panmixia in the “circumpolar” crinoid Promachocrinus kerguelensis from the Atlantic sector of Antarctica
The finding of considerable genetic diversity within the Atlantic sector alone suggests that the recognized diversity of Antarctica’s benthic marine life may be underestimated, and will rise dramatically with phylogeographic analyses of putative widespread species.
Cryptic speciation in the giant Antarctic isopod Glyptonotus antarcticus (Isopoda: Valvifera: Chaetiliidae)
In a survey of within-species genetic diversity, 23 specimens of the benthic Antarctic isopod Glyptonotus antarcticus from three sampling areas around the Antarctic had a high genetic variability in their mitochondrial LSU (16S) gene, which may represent cryptic, but reproductively isolated species rather than a single species.
A new Epimeria (Crustacea, Amphipoda, Paramphithoidae) from the Weddell Sea
Observations on the general and feeding behaviour of living specimens of Epimeria rubrieques sp.
Two new Antarctic species of the genus Epimeria (Crustacea: Amphipoda: Paramphithoidae), with description of juveniles
The juveniles of the new species are described and are considerably different from the adults, and the reduction of acute body processes in the juveniles is interpreted as adaptation to early life in the marsupium.
Genetic diversity of Nymphon (Arthropoda: Pycnogonida: Nymphonidae) along the Antarctic Peninsula with a focus on Nymphon australe Hodgson 1902
The genetic diversity of several Nymphon species collected in the Antarctic Peninsular region is examined and Cytochrome c oxidase subunit I (COI) and 16S ribosomal gene data suggest a recent common history and/or recent gene-flow of N. australe populations across nearly 800 km of the Antarctic Peninsula.