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Metridinidae of the World Oceans

There are 39 species of Metridinidae that are commonly found in the World Oceans.

Information on the COI barcoding status of these species is presented in the table below.
MODE
A
All available COI barcodes for this taxa group (collected from any ocean and/or without geo-referencing):
  • Of the 39 total species, 20 of these species (51%) have COI barcodes (from this or any ocean).
  • There are a total of 1951 "any ocean" COI barcode records available for this ocean and taxa group.
  • All available taxa group COI barcodes will be included in the Mode A downloads.
  • MODE
    B
    Regional COI barcodes for this taxa group (includes only those collected in the World Oceans region):
  • Of the 39 total species, 20 of these species (51%) have World Oceans-collected COI barcodes.
  • There are a total of 1951 "World Oceans-collected" COI barcodes available for this taxa group.
  • In the map to the right, Red Stars show sampling locations of the COI barcodes in the Mode B download.
  • Uncoded
    Species
    Of the 39 total species in this region, 19 species do not have any COI barcodes (from any region).

    Barcoding progress summary for the World Oceans region, out of a total of 39 possible species:
    • There are COI barcodes for 20 species ( 51% coverage ).
    • There are 12S barcodes for 9 species ( 23% coverage ). 
    • There are 16S barcodes for 13 species ( 33% coverage ).
    • There are 18S barcodes for 16 species ( 41% coverage ).
    • There are 28S barcodes for 12 species ( 30% coverage ).

    MZGdb Data Download Options
    ---> CLICK HERE <---



    Change Region   [ World ] [ Arctic ] [ North Atlantic ] [ South Atlantic ] [ Southern Ocean ] [ Indian Ocean ] [ South Pacific ]
    [ North Pacific ] [ Baltic Sea ] [ Mediterranean Sea ] [ Australia subregion ]

    Table Viewing Options   [ Species-only Summary, sorted by name (default) ]   or   [ Full Taxonomic Hierarchy ]   or   [ flat-text file of sorted species names ]


    Metridinidae of the World Oceans
    Taxa Name

    Taxa
    Level
    Barcode
    Data?
    Number of
    Barcodes
    from
    any ocean
    Number of
    Barcodes
    from this region
    Barcode Locations and
    Species Occurence Map
    MZGdb Atlas
    v2025-m03-01


    2025-May-05
      Gaussia asymmetrica Species
    (1)
    No barcodes?   COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 0
      COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 0
    accepted
    T4018766


    R:1:0:0:0
      Gaussia intermedia Species
    (2)
    No barcodes?   COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 0
      COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 0
    accepted
    T4003381


    R:1:0:0:0
      Gaussia princeps Species
    (3)
    COI
    12S
    16S
    18S
    28S
      COI = 1
      12S = 0
      16S = 0
      18S = 2
      28S = 0
      COI = 1
      12S = 0
      16S = 0
      18S = 2
      28S = 0
    accepted
    T4001143


    R:1:0:0:0
      Gaussia sewelli Species
    (4)
    No barcodes?   COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 0
      COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 0
    accepted
    T4018767


    R:1:0:0:0
      Metridia alata Species
    (5)
    No barcodes?   COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 0
      COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 0
    accepted
    T4019348


    R:1:0:0:0
      Metridia asymmetrica Species
    (6)
    COI
    12S
    16S
    18S
    28S
      COI = 31
      12S = 1
      16S = 1
      18S = 1
      28S = 0
      COI = 31
      12S = 1
      16S = 1
      18S = 1
      28S = 0
    accepted
    T4013015


    R:1:0:0:0
      Metridia bicornuta Species
    (7)
    No barcodes?   COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 0
      COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 0
    accepted
    T4033882


    R:1:0:0:0
      Metridia boeckii Species
    (8)
    No barcodes?   COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 0
      COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 0
    accepted
    T4019349


    R:1:0:0:0
      Metridia brevicauda Species
    (9)
    COI
    12S
    16S
    18S
    28S
      COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 3
      COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 3
    accepted
    T4000461


    R:1:0:0:0
      Metridia calypsoi Species
    (10)
    No barcodes?   COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 0
      COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 0
    accepted
    T4033883


    R:1:0:0:0
      Metridia curticauda Species
    (11)
    COI
    12S
    16S
    18S
    28S
      COI = 3
      12S = 0
      16S = 1
      18S = 3
      28S = 0
      COI = 3
      12S = 0
      16S = 1
      18S = 3
      28S = 0
    accepted
    T4000386


    R:1:0:0:0
      Metridia discreta Species
    (12)
    No barcodes?   COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 0
      COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 0
    accepted
    T4019350


    R:1:0:0:0
      Metridia effusa Species
    (13)
    COI
    12S
    16S
    18S
    28S
      COI = 3
      12S = 0
      16S = 0
      18S = 1
      28S = 1
      COI = 3
      12S = 0
      16S = 0
      18S = 1
      28S = 1
    accepted
    T4000789


    R:1:0:0:0
      Metridia ferrarii Species
    (14)
    No barcodes?   COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 0
      COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 0
    accepted
    T4019351


    R:1:0:0:0
      Metridia gerlachei Species
    (15)
    COI
    12S
    16S
    18S
    28S
      COI = 11
      12S = 0
      16S = 0
      18S = 2
      28S = 1
      COI = 11
      12S = 0
      16S = 0
      18S = 2
      28S = 1
    accepted
    T4000278


    R:1:0:0:0
      Metridia gurjanovae Species
    (16)
    No barcodes?   COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 0
      COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 0
    accepted
    T4019352


    R:1:0:0:0
      Metridia ignota Species
    (17)
    No barcodes?   COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 0
      COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 0
    accepted
    T4033884


    R:1:0:0:0
      Metridia longa Species
    (18)
    COI
    12S
    16S
    18S
    28S
      COI = 7
      12S = 0
      16S = 1
      18S = 1
      28S = 2
      COI = 7
      12S = 0
      16S = 1
      18S = 1
      28S = 2
    accepted
    T4000114


    R:1:0:0:0
      Metridia lucens
    accepted_AR
    Species
    (19)
    COI
    12S
    16S
    18S
    28S
      COI = 239
      12S = 1
      16S = 3
      18S = 3
      28S = 2
      COI = 239
      12S = 1
      16S = 3
      18S = 3
      28S = 2
    accepted_AR
    T4000029


    R:1:0:0:0
      Metridia macrura Species
    (20)
    No barcodes?   COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 0
      COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 0
    accepted
    T4019353


    R:1:0:0:0
      Metridia normani Species
    (21)
    No barcodes?   COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 0
      COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 0
    accepted
    T4019354


    R:1:0:0:0
      Metridia okhotensis Species
    (22)
    COI
    12S
    16S
    18S
    28S
      COI = 9
      12S = 1
      16S = 1
      18S = 2
      28S = 1
      COI = 9
      12S = 1
      16S = 1
      18S = 2
      28S = 1
    accepted
    T4000774


    R:1:0:0:0
      Metridia ornata Species
    (23)
    COI
    12S
    16S
    18S
    28S
      COI = 1
      12S = 0
      16S = 0
      18S = 0
      28S = 0
      COI = 1
      12S = 0
      16S = 0
      18S = 0
      28S = 0
    accepted
    T4019355


    R:1:0:0:0
      Metridia pacifica Species
    (24)
    COI
    12S
    16S
    18S
    28S
      COI = 205
      12S = 1
      16S = 2
      18S = 4
      28S = 4
      COI = 205
      12S = 1
      16S = 2
      18S = 4
      28S = 4
    accepted
    T4000166


    R:1:0:0:0
      Metridia princeps Species
    (25)
    COI
    12S
    16S
    18S
    28S
      COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 2
      COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 2
    accepted
    T4000543


    R:1:0:0:0
      Metridia pseudoasymmetrica Species
    (26)
    No barcodes?   COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 0
      COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 0
    accepted
    T4019356


    R:1:0:0:0
      Metridia similis Species
    (27)
    No barcodes?   COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 0
      COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 0
    accepted
    T4019357


    R:1:0:0:0
      Metridia trispinosa Species
    (28)
    No barcodes?   COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 0
      COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 0
    accepted
    T4034381


    R:1:0:0:0
      Metridia venusta Species
    (29)
    COI
    12S
    16S
    18S
    28S
      COI = 1
      12S = 1
      16S = 1
      18S = 0
      28S = 2
      COI = 1
      12S = 1
      16S = 1
      18S = 0
      28S = 2
    accepted
    T4000855


    R:1:0:0:0
      Pleuromamma abdominalis
    accepted_AR
    Species
    (30)
    COI
    12S
    16S
    18S
    28S
      COI = 1054
      12S = 1
      16S = 1
      18S = 6
      28S = 13
      COI = 1054
      12S = 1
      16S = 1
      18S = 6
      28S = 13
    accepted_AR
    T4000047


    R:1:0:0:0
      Pleuromamma antarctica Species
    (31)
    COI
    12S
    16S
    18S
    28S
      COI = 3
      12S = 0
      16S = 0
      18S = 1
      28S = 0
      COI = 3
      12S = 0
      16S = 0
      18S = 1
      28S = 0
    accepted
    T4014259


    R:1:0:0:0
      Pleuromamma borealis Species
    (32)
    COI
    12S
    16S
    18S
    28S
      COI = 13
      12S = 0
      16S = 1
      18S = 1
      28S = 0
      COI = 13
      12S = 0
      16S = 1
      18S = 1
      28S = 0
    accepted
    T4000126


    R:1:0:0:0
      Pleuromamma gracilis
    accepted_AR
    Species
    (33)
    COI
    12S
    16S
    18S
    28S
      COI = 51
      12S = 0
      16S = 1
      18S = 1
      28S = 5
      COI = 51
      12S = 0
      16S = 1
      18S = 1
      28S = 5
    accepted_AR
    T4000057


    R:1:0:0:0
      Pleuromamma indica Species
    (34)
    COI
    12S
    16S
    18S
    28S
      COI = 2
      12S = 0
      16S = 0
      18S = 0
      28S = 0
      COI = 2
      12S = 0
      16S = 0
      18S = 0
      28S = 0
    accepted
    T4000100


    R:1:0:0:0
      Pleuromamma johnsoni Species
    (35)
    No barcodes?   COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 0
      COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 0
    accepted
    T4019805


    R:1:0:0:0
      Pleuromamma piseki Species
    (36)
    COI
    12S
    16S
    18S
    28S
      COI = 16
      12S = 1
      16S = 1
      18S = 0
      28S = 0
      COI = 16
      12S = 1
      16S = 1
      18S = 0
      28S = 0
    accepted
    T4000318


    R:1:0:0:0
      Pleuromamma robusta
    accepted_AR
    Species
    (37)
    COI
    12S
    16S
    18S
    28S
      COI = 8
      12S = 0
      16S = 0
      18S = 4
      28S = 0
      COI = 8
      12S = 0
      16S = 0
      18S = 4
      28S = 0
    accepted_AR
    T4000091


    R:1:0:0:0
      Pleuromamma scutullata Species
    (38)
    COI
    12S
    16S
    18S
    28S
      COI = 34
      12S = 1
      16S = 1
      18S = 1
      28S = 0
      COI = 34
      12S = 1
      16S = 1
      18S = 1
      28S = 0
    accepted
    T4001142


    R:1:0:0:0
      Pleuromamma xiphias Species
    (39)
    COI
    12S
    16S
    18S
    28S
      COI = 343
      12S = 1
      16S = 1
      18S = 2
      28S = 5
      COI = 343
      12S = 1
      16S = 1
      18S = 2
      28S = 5
    accepted
    T4000172


    R:1:0:0:0
    MZGdb Atlas [ database-version = v2025-m03-01 ];   html-date = 2025-May-05









    Mon May 5 10:08:51 PM EDT 2025