Ischnomesus harrietae sp. nov., a new benthic asellote (Crustacea: Isopoda: Ischnomesidae) from bathyal bottoms of the southern Bay of Biscay

A new species of Ischnomesidae (Crustacea: Isopoda: Asellota), Ischnomesus harrietae sp. nov. is described from the southern Bay of Biscay. This new species is distinctive due to the presence of numerous pedestal setae arranged in longitudinal rows on pereonite 5. Because of this morphological pecul...

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Published inZootaxa Vol. 3911; no. 2; p. 201
Main Authors Kavanagh, Fiona A, Frutos, Inmaculada, Sorbe, Jean Claude
Format Journal Article
LanguageEnglish
Published New Zealand 19.01.2015
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Abstract A new species of Ischnomesidae (Crustacea: Isopoda: Asellota), Ischnomesus harrietae sp. nov. is described from the southern Bay of Biscay. This new species is distinctive due to the presence of numerous pedestal setae arranged in longitudinal rows on pereonite 5. Because of this morphological peculiarity, it can be easily distinguished from the four other Ischnomesus species previously reported from bathyal/abyssal bottoms of the European continental margin. Within its known distributional area, the new species inhabits sandy and muddy bottoms between 619 and 1099 m, with a maximum abundance of 41.8 individuals per 100 m2 recorded at approximately 700 m on the Arcachon Plateau. Another new species is also reported, Ischnomesus sp.1, represented by one specimen only and briefly described. An identification key to European species of Ischnomesus is provided.
AbstractList A new species of Ischnomesidae (Crustacea: Isopoda: Asellota), Ischnomesus harrietae sp. nov. is described from the southern Bay of Biscay. This new species is distinctive due to the presence of numerous pedestal setae arranged in longitudinal rows on pereonite 5. Because of this morphological peculiarity, it can be easily distinguished from the four other Ischnomesus species previously reported from bathyal/abyssal bottoms of the European continental margin. Within its known distributional area, the new species inhabits sandy and muddy bottoms between 619 and 1099 m, with a maximum abundance of 41.8 individuals per 100 m2 recorded at approximately 700 m on the Arcachon Plateau. Another new species is also reported, Ischnomesus sp.1, represented by one specimen only and briefly described. An identification key to European species of Ischnomesus is provided.
Author Sorbe, Jean Claude
Frutos, Inmaculada
Kavanagh, Fiona A
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  organization: Ryan Institute, National University of Ireland, Galway, Ireland.; Email: kavfiona@gmail.com
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  givenname: Inmaculada
  surname: Frutos
  fullname: Frutos, Inmaculada
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  organization: Departamento Ciencias de la Vida, EU-US Marine Biodiversity Group, Universidad de Alcalá, 28871 Alcalá de Henares, Spain.; Email: inmafparralejo@gmail.com
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  givenname: Jean Claude
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  organization: Station Marine, 2 rue Jolyet, 33120, Arcachon, France.; Email: sorbejc@gmail.com
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crossref_primary_10_7717_peerj_14272
crossref_primary_10_1093_zoolinnean_zlx042
crossref_primary_10_1016_j_dsr_2017_10_007
crossref_primary_10_11646_zootaxa_4751_2_2
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Snippet A new species of Ischnomesidae (Crustacea: Isopoda: Asellota), Ischnomesus harrietae sp. nov. is described from the southern Bay of Biscay. This new species is...
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StartPage 201
SubjectTerms Animal Distribution
Animal Structures - anatomy & histology
Animal Structures - growth & development
Animals
Bays
Body Size
Ecosystem
Female
Isopoda - anatomy & histology
Isopoda - classification
Isopoda - growth & development
Male
Organ Size
Title Ischnomesus harrietae sp. nov., a new benthic asellote (Crustacea: Isopoda: Ischnomesidae) from bathyal bottoms of the southern Bay of Biscay
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