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Mollusca-Gastropoda of the World Oceans

There are 19170 species of Mollusca-Gastropoda 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 19170 total species, 5756 of these species (30%) have COI barcodes (from this or any ocean).
  • There are a total of 75814 "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 19170 total species, 5756 of these species (30%) have World Oceans-collected COI barcodes.
  • There are a total of 75814 "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 19170 total species in this region, 13414 species do not have any COI barcodes (from any region).

     Barcoding progress summary for the World Oceans region, out of a total of 19170 possible species:
    • There are COI barcodes for 5756 species ( 30% coverage ).
      •
    • There are 12S barcodes for 2167 species ( 11% coverage ). 
    • There are 16S barcodes for 4061 species ( 21% coverage ).
    • There are 18S barcodes for 1145 species ( 5% coverage ).
    • There are 28S barcodes for 2271 species ( 11% coverage ).
    Change Region   [ World ] [ Arctic ] [ North Atlantic ] [ South Atlantic ] [ Southern Ocean ] [ Indian Ocean ] [ South Pacific ]
    [ North Pacific ] [ Baltic Sea ] [ Mediterranean Sea ] [ Australia subregion ]
    -----> Click here to go back to the Group Summary page. <-----


    Mollusca-Gastropoda of the World Oceans
    MZGdb DATA FILES

    Database-Version:   v2025-m10-01    		 --->   Mode-A   <---

    COI barcodes = 75814
    12S barcodes = 5655
    16S barcodes = 15788
    18S barcodes = 1945
    28S barcodes = 5918
    		 Mode-B

    Not Applicable

    B = A for "world"         		Mode-C

    COI records = 94862
    12S records = 7099
    16S records = 19370
    18S records = 2511
    28S records = 8360
    		 Mode-D

    Not Applicable

    D = C for "world"
    FASTA file (*.fasta) MZGdb fasta (mode-A)
    COI | 12S | 16S | 18S | 28S

    True "barcode" (species-only) data
    from ANY ocean     (mode-A)     		MZGdb fasta (mode-B)
    not applicable     		MZGdb fasta (mode-C)
    COI | 12S | 16S | 18S | 28S

    Genus-spp and species data
    from ANY ocean     (mode-C)     		MZGdb fasta (mode-D)
    not applicable
    Mothur-formatted
    Taxonomic Hierarchy file (*.txt)

    Paired with fasta file above    		 MZGdb Mothur (mode-A)
    COI | 12S | 16S | 18S | 28S

    True "barcode" (species-only) data
    from ANY ocean     (mode-A)     		MZGdb Mothur (mode-B)
    not applicable     		MZGdb Mothur (mode-C)
    COI | 12S | 16S | 18S | 28S

    Genus-spp and species data
    from ANY ocean     (mode-C)     		MZGdb Mothur (mode-D)
    not applicable
    DADA2 file (*.fastq)

    Single "fasta+taxa" DADA2 fastq file    		 MZGdb DADA2 (mode-A)
    COI | 12S | 16S | 18S | 28S

    True "barcode" (species-only) data
    from ANY ocean     (mode-A)     		MZGdb DADA2 (mode-B)
    not applicable     		MZGdb DADA2 (mode-C)
    COI | 12S | 16S | 18S | 28S

    Genus-spp and species data
    from ANY ocean     (mode-C)     		MZGdb DADA2 (mode-D)
    not applicable
    MZGdb v3.0

    "full format"

    go to
    Format Description    		MZGdb CSV (*.csv)

    Excel-friendly full format
    comma-separated-values    		 MZGdb CSV (mode-A)
    COI | 12S | 16S | 18S | 28S

    True "barcode" (species-only) data
    from ANY ocean     (mode-A)     		MZGdb CSV (mode-B)
    not applicable     		MZGdb CSV (mode-C)
    COI | 12S | 16S | 18S | 28S

    Genus-spp and species data
    from ANY ocean     (mode-C)     		MZGdb CSV (mode-D)
    not applicable
    PSV (*.psv)

    pipe-separated-values    		 MZGdb PSV (mode-A)
    COI | 12S | 16S | 18S | 28S

    True "barcode" (species-only) data
    from ANY ocean     (mode-A)     		MZGdb PSV (mode-B)
    not applicable     		MZGdb PSV (mode-C)
    COI | 12S | 16S | 18S | 28S

    Genus-spp and species data
    from ANY ocean     (mode-C)     		MZGdb PSV (mode-D)
    not applicable


    MZGdb Atlas [ database-version = v2025-m10-01 ];   html-date = 2025-Oct-27









    Mon Oct 27 02:10:55 PM EDT 2025