ITIS - possible missing synonym for Ptilinopus layardi D.G.Elliot, 1878

[ManonGros]

Describe the problem: Related to this issue posted on the GBIF Feedback portal: https://github.com/gbif/backbone-feedback/issues/209

Chrysoena viridis Layard, 1875 seems to be a synonym of Ptilinopus layardi D.G.Elliot, 1878.

Link to effected CoL webpages: https://www.catalogueoflife.org/data/taxon/4Q7NJ

Literature references: See the references in Avibase: https://avibase.bsc-eoc.org/species.jsp?lang=EN&avibaseid=457D9C388F2B0758&sec=synonyms

[yroskov]

For attention of @DaveNicolson

[DaveNicolson]

ITIS is in the process of adding all names treated as valid in any of the major world bird lists (including in synonymy, as appropriate), while ITIS will continue to follow the IOC's world bird list overall. This should be addressed once ITIS completes an update of Columbidae. The overall bird update, with expanded synonymy, will take time, and I don't immediately have a timeframe for the completion & loading of an updated Columbidae into ITIS, and from there into COL and GBIF. But the work on the overall bird updates is proceeding, and this will be resolved, given time. The same would typically apply to any other report that a name used as valid by one of the major world bird lists isn't yet accounted for correctly in COL and ITIS.

[DaveNicolson]

HOWEVER, it is not possible, barring some sort of ruling by the IUCN or other priority/availability twist, for Chrysoena viridis Layard, 1875 to be a junior synonym of Ptilinopus layardi D.G.Elliot, 1878, as layardi is junior to viridis. This kink has triggered a closer look at this issue. We will provide further comments once that's complete.

UPDATE: Chrysoena viridis Layard, 1875 was moved to Ptilinopus, where it was preoccupied (junior secondary homonym) by a Linnean name. Elliot proposed Ptilinopus layardi as the replacement name (so they are homotypic). So this all makes sense. We will update ITIS accordingly once we make the update to the family.

[DaveNicolson]

UPDATE, posted to the original GBIF issue, pasted here for reference:

We reconsidered, as we were not planning to update the Columbiformes soon, as we updated the whole thing in Summer 2020, which was unfortunately shortly before we decided to include all the names used as valid in the major world bird sources in ITIS (in synonymy, as appropriate to the IOC taxonomy we are following in ITIS). Rather than making you wait for us to cycle back to update the order again, David M went ahead and worked on the genus, adding synonymy for the 3 species of Chrysoena (if recognized it is generally with 3 spp) under the corresponding species of Ptilinopus, and added the genus Chrysoena as a junior synonym of Ptilinopus. HBW's names for the genus and 3 species will now be properly accounted for in ITIS, per the taxonomy of the IOC's world bird list, and GBIF records entered using species of Chrysoena should soon be linked to the IOC names via ITIS/COL/GBIF. We did not update anything else at this point, as that will have to wait until we work through other bird orders/families before coming back to the Columbiformes.

The update should appear in ITIS once the July load is completed (possibly in late July, possibly in early August, depending on how everyone's vacation time affects it). GBIF should reflect the data after the next import of the new ITIS data, but I don't know precisely what that timing will be.

Here are the names added in synonymy, for reference: Ptilinopus Swainson, 1825 valid Chrysoena Bonaparte, 1854 invalid, junior synonym

Ptilinopus layardi D. G. Elliot, 1878 valid Chrysoena viridis E. L. Layard, 1875 invalid, junior homonym

Ptilinopus luteovirens (Hombron & Jacquinot, 1841) valid Columba luteovirens Hombron & Jacquinot, 1841 invalid, original name/combination Chrysoena luteovirens (Hombron & Jacquinot, 1841) invalid, subsequent name/combination

Ptilinopus victor (Gould, 1872) valid Chrysoena victor Gould, 1872 invalid, original name/combination