IUCN Red List data observations

An unofficial, independent review to support data improvement · IUCN Red List version 2026-1

Scientific name fields versus taxonomy components

Source: IUCN Red List 2026-1 (CSV export) · 4 rows

The table below lists assessments whose recorded scientific name does not agree with the separate fields it should be built from. For each assessment, a name is rebuilt from the genus, species, infra rank, and subpopulation fields and compared against the recorded scientificName. The CSV export also records the scientificName in two places, its assessments and taxonomy files, and those two copies are compared as well. A row appears where the two copies disagree, where the name cannot be rebuilt from the component fields, or where an expected genus, species, infra-name, or subpopulation word is missing from the recorded name. Comparisons are exact after whitespace normalisation. A hybrid marker (×) or deliberately unusual formatting can make a name fail the rebuild without anything being wrong.

Why it matters

The recorded name and the component fields are two representations of the same taxon. When they disagree, it is unclear which is authoritative, and anything built from the components (sort keys, rebuilt names, joins) diverges from the displayed name.

Suggestion

Check each row against the source assessment and bring the recorded name and the component fields into agreement. Hybrids and deliberately unusual formatting can be left as they are.

About the four rows

All four rows come from one typo: two sea snake species whose scientificName is written MIcrocephalophis (extra capital I) while the genus field correctly reads Microcephalophis. The same typo is present in release 2025-2.

By observation

197,315 rows scanned. Checks listed at 0 ran and found nothing.

ObservationCount
scientificName differs between the assessments and taxonomy files0
name not rebuilt from components2
genus token missing from name2
species token missing from name0
infra-name token missing from name0
subpopulation token mismatch0

Preview

Recorded nameRankObservationFieldRecordedExpectedStatusClassFamilyTaxon idAssessmentRed ListDetail
MIcrocephalophis cantorisspeciesreconstruction-mismatchscientificNameMIcrocephalophis cantorisMicrocephalophis cantorisDDREPTILIAELAPIDAE1767137288602viewusing assessments field
MIcrocephalophis gracilisspeciesreconstruction-mismatchscientificNameMIcrocephalophis gracilisMicrocephalophis gracilisLCREPTILIAELAPIDAE1767657299914viewusing assessments field
MIcrocephalophis cantorisspeciesgenus-mismatchgenusNameMIcrocephalophis cantorisMicrocephalophisDDREPTILIAELAPIDAE1767137288602viewgenus mismatch
MIcrocephalophis gracilisspeciesgenus-mismatchgenusNameMIcrocephalophis gracilisMicrocephalophisLCREPTILIAELAPIDAE1767657299914viewgenus mismatch

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