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Revision of Beroidae (Ctenophora) in the southern seas of Europe: systematics and distribution based on genetics and morphology
Shiganova, T.A.; Abyzova, G.A. (2022). Revision of Beroidae (Ctenophora) in the southern seas of Europe: systematics and distribution based on genetics and morphology. Zool. J. Linn. Soc. 194(1): 297-322. https://dx.doi.org/10.1093/zoolinnean/zlab021
In: Zoological Journal of the Linnean Society. Academic Press: London. ISSN 0024-4082; e-ISSN 1096-3642, more
Peer reviewed article  
Keywords
    Taxa > Species > New taxa > New species
    Beroe Browne, 1756 [WoRMS]
    Marine/Coastal
Author keywords
    Black Sea; DNA barcoding; European southern seas; internal transcribed spacer; invasive species; Mediterranean Sea
Authors  Top 
  • Shiganova, T.A., more
  • Abyzova, G.A.
Abstract
    Genetic and morphological analyses were used to revise historical controversies in identities of Beroe species in the southern seas of Europe. DNA analyses with ITS sequences were used to explore their phylogenetic relationships. Three species of Beroe were initially listed as occurring in the Mediterranean Sea. Recently, the specimens were often re-identified using genetic analyses, causing confusions of identity. In 1997, a non-native Beroe was introduced into the Black Sea, which established there and spread to the adjacent seas, adding more controversy and confusion to species identification in this group of comb jellies.

    Our revisions suggest the following systematic changes: (1) re-naming of the species from what was initially labelled as Beroe ovata, and later as B. cucumis (sensuMayer, 1912), to Beroe pseudocucumis sp. nov.. (2) Beroe mitrata but not Beroe ‘anatoliensis’ inhabits the Aegean Sea, as was reported previously. (3) Beroe ovata is the only species of Beroidae that became invasive and should be used with the authority of Bruguière, 1789, but not in the sense of Mayer, 1912. (4) Beroe forskalii appears to be represented by two species in the Mediterranean and in the Antarctic, but further justification is needed. (5) Beroe cucumis is a species of bipolar occurrence, inhabiting both subpolar areas and its recent definition as Beroe ‘norvegica’ is incorrect.

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