Project 816: Maria Capa, J. Parapar, P. Hutchings. 2012. Phylogeny of Oweniidae (Polychata) based on morphological data and taxonomic revision of Australian fauna. Zoological Journal of the Linnean Society. 166 (2):236-278.
Specimen: Galathowenia arafurensis (AM:W34017)

Abstract

The family Oweniidae Rioja, 1917 is a small group of broadly distributed polychaetes whose relationships and position in the annelid tree are still poorly understood. A comprehensive revision of the group with reconsideration of character homologies and terminology under a phylogenetic framework was needed. We investigated the relationships of members of Oweniidae and other polychaetes by performing maximum parsimony analyses of 18 oweniid species of the five recognized genera to date and members of the families Siboglinidae, Sabellidae, Spionidae, Magelonidae, and Chaetopteridae. Phylogenetic hypotheses confirmed the monophyly of Oweniidae and suggested sister-group relationships with Magelonidae, although weakly supported. Analyses also recovered Owenia and Myriowenia as monophyletic and allowed recognition of Myrioglobula as a junior synonym of Myriochele based on the presence of acicular chaetae and the shape of the head. Implied weighting analyses supported these findings and recovered Galathowenia australis as sister group of Myriochele. The presence of acicular chaetae justifies the consideration of this species as belonging to Myriochele. Nomenclatural changes are proposed for those species previously considered as members of Myrioglobula, and these are: Myriochele antarcticacomb. nov., Myriochele japonicacomb. nov., Myriochele islandicacomb. nov., Myriochele malmgrenicomb. nov., and Myriochele australiscomb. nov. After analyses and definition of generic diagnostic features, other new combinations include Galathowenia eurystomacomb. nov. and Galathowenia haplosomacomb. nov., previously considered as members of Myriochele. Taxonomic revision of Australian collections revealed the presence of Myriochele heruensis Gibbs, 1971, which is herein redescribed, and allowed the description of four new species: Galathowenia annae sp. nov., Galathowenia arafurensissp. nov., Galathowenia quelissp. nov., and Myriochele australiensissp. nov., mostly from the east coast of Australia, in addition to the three recently well-documented species of Owenia. Australian species have been described, illustrated, and compared in detail with similar taxa. Distribution patterns and ecological notes have also been given. Keys to oweniid genera and Australian species are provided.


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Project DOI: 10.7934/P816, http://dx.doi.org/10.7934/P816
This project containsMatrices
  • 1 Media
  • 1 Matrix
  • 1 Document
  • 23 Taxa
  • 1 Specimen
  • 35 Characters
Total size of project's media files: 1 MB

Download Project SDD File
Total scored cells: 778
Total media associated with cells: 0
Total labels associated with cell media: 0
Characters
Total characters: 35
Total characters with associated media: 0
Total characters with media with labels: 0
Total character states: 86
Total character states with associated media: 0
Total character states with media with labels:0
Total unordered/ordered characters:35/0
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MorphoBank Project 816


    Members

    member name taxa specimens media chars character
    media
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    (scored, NPA, "-")
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    MorphoBank Curator
    Project Administrator
    Last logged in 11/07/12
    23113500778
    (753, 0, 25)
    000
    Maureen Admin
    Full membership
    Last logged in 11/05/12
    0000000
    (0, 0, 0)
    000
    Maria Capa
    Full membership
    Last logged in 10/26/12
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    000


    Taxonomic Overview for Matrix 'M1848' (23 Taxa)

    taxon unscored
    cells
    scored
    cells
    no cell
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    NPA
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    "-" cellscell images labels on
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    [1] Chaetopteridae
    Last Modified in 12/05/13
    3292804003
    [2] Magelonidae
    Last Modified in 12/05/13
    1333301003
    [3] Sabellidae
    Last Modified in 12/05/13
    1333004003
    [4] Spionidae
    Last Modified in 12/05/13
    1333102003
    [5] Siboglinidae
    Last Modified in 12/05/13
    2302904003
    [6] Galathowenia africana
    Last Modified in 12/05/13
    2323101003
    [7] Galathowenia annae
    Last Modified in 12/05/13
    1333201003
    [8] Galathowenia fragilis
    Last Modified in 12/05/13
    2323201003
    [9] Galathowenia scotiae
    Last Modified in 12/05/13
    1333201003
    [10] Galthowenia quelis
    Last Modified in 12/05/13
    2323101003
    [11] Galathowenia arafurensis
    Last Modified in 12/05/13
    1333201003
    [12] Galathowenia australis
    Last Modified in 12/05/13
    1343300003
    [13] Myriochele heeri
    Last Modified in 12/05/13
    0353400003
    [14] Myriochele olgae
    Last Modified in 12/05/13
    0353300003
    [15] Myriochele robusta
    Last Modified in 12/05/13
    0353500003
    [16] Myriochele corcovata
    Last Modified in 12/05/13
    0353400003
    [17] Myrioglobula antarctica
    Last Modified in 12/05/13
    7282800003
    [18] Myrioglobula islandica
    Last Modified in 12/05/13
    2333200003
    [19] Myrioglobula australiensis
    Last Modified in 12/05/13
    3323100003
    [20] Myriowenia californiensis
    Last Modified in 12/05/13
    1333101003
    [21] Myriowenia sp.
    Last Modified in 12/05/13
    0343301003
    [22] Owenia fusiformis
    Last Modified in 12/05/13
    1333301003
    [23] Owenia australis
    Last Modified in 12/05/13
    1333201003


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    Total project views18069
    Project overview2923
    Media views3986Media search (3517 views); M150095 (469 views);
    Matrix views1983Matrix landing page (1778 views); Owenid Matrix (205 views);
    Taxon list5087
    Specimen list1890
    Bibliography799
    Documents list1401




    Project downloads

    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project160
    Matrix downloads4Owenid Matrix (4 downloads);
    Project downloads155
    Document downloads1Copyright Clearance (1 download);