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  1. Portal Feedback
  2. PF-2600

Badly merged higher taxa with double letters - Vallonia gracilicosta has incorrect taxonomy

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      Description

      GBIF ID 2296014 (Vallonia gracilicosta) is a land snail: Kingdom Animalia Phylum Molluscsa Class Gastropoda Order Stylommatophora Family Valloniidae; not a Dipteran insect as the GBIF profile describes.

      Reporter: Matthew
      E-mail: matthew.s.bolton@gmail.com

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          Roderic D. M. Page added a comment - - edited

          Strange bug as AFAIK none of the checklists that prove provide this name make this link to the dipteran fly family.

          Show
          Roderic D. M. Page added a comment - - edited Strange bug as AFAIK none of the checklists that prove provide this name make this link to the dipteran fly family.
          Hide
          Tim Robertson added a comment -

          I looked also and came to the same conclusion.

          My suspicion is this is a bad algorithmic assembly of the nub itself, due to Valonia vs Val[l]onia.

          Valonia complicata Walker, 1856
          Valonia planiscutellata Frey, 1964

          My hunch being that those genera were created in the backbone, and then when the otherwise unseen Vallonia genus was added it was too aggressively fuzzy-matched and all those snails were brought in under the existing flys of Valiona.

          Or something along those lines.

          Show
          Tim Robertson added a comment - I looked also and came to the same conclusion. My suspicion is this is a bad algorithmic assembly of the nub itself, due to Valonia vs Val [l] onia. Valonia complicata Walker, 1856 Valonia planiscutellata Frey, 1964 My hunch being that those genera were created in the backbone, and then when the otherwise unseen Vallonia genus was added it was too aggressively fuzzy-matched and all those snails were brought in under the existing flys of Valiona . Or something along those lines.
          Hide
          Matthew Blissett added a comment -

          That seems likely; the more recent changes to the NUB matching allow double letters and single letters to be considered similar, but reduced the similarity of other spelling changes.

          Show
          Matthew Blissett added a comment - That seems likely; the more recent changes to the NUB matching allow double letters and single letters to be considered similar, but reduced the similarity of other spelling changes.
          Hide
          Roderic D. M. Page added a comment -

          Good spot, currently both Valonia (one l, fly http://www.gbif.org/species/8707617 ) and Vallonia (two l's, snail http://www.gbif.org/species/2296006 ) are treated as children of the fly family Platystomatidae http://www.gbif.org/species/9504. Perhaps one for the https://github.com/gbif/backbone-patch to resolve...

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          Roderic D. M. Page added a comment - Good spot, currently both Valonia (one l, fly http://www.gbif.org/species/8707617 ) and Vallonia (two l's, snail http://www.gbif.org/species/2296006 ) are treated as children of the fly family Platystomatidae http://www.gbif.org/species/9504 . Perhaps one for the https://github.com/gbif/backbone-patch to resolve...
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          Markus Döring added a comment -

          Thats likely the cause, yes. And not easy to fix I bet. The reason the 2 genera exist is they differ in authorship.
          Maybe we need to restrict the name normalization that reduces double chars to a single one to epithets only and leave the genus as is. I'll add a test and see how that can be adressed. The backbone patch unfortunately won't help here as its names also undergoes the name normalization

          Show
          Markus Döring added a comment - Thats likely the cause, yes. And not easy to fix I bet. The reason the 2 genera exist is they differ in authorship. Maybe we need to restrict the name normalization that reduces double chars to a single one to epithets only and leave the genus as is. I'll add a test and see how that can be adressed. The backbone patch unfortunately won't help here as its names also undergoes the name normalization
          Hide
          Markus Döring added a comment -

          Backbone building fixed in https://github.com/gbif/checklistbank/commit/176a739b1e7823082d1d302833c7a7cdd4933fbc to just apply character dedoublication for bi/trinomials. Gonna be fixed live with the next nub build

          Show
          Markus Döring added a comment - Backbone building fixed in https://github.com/gbif/checklistbank/commit/176a739b1e7823082d1d302833c7a7cdd4933fbc to just apply character dedoublication for bi/trinomials. Gonna be fixed live with the next nub build
          Show
          Markus Döring added a comment - See also https://github.com/gbif/checklistbank/issues/19

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            • Assignee:
              Markus Döring
              Reporter:
              Feedback Bot
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