Sulfideilla

Sulfideilla is a name occasionally encountered as a proposed genus of bacteria associated with sulfide metabolism. The epithet suggests a relationship to sulfide, but no validly published description exists.

Taxonomy and status: It is not listed as a valid genus in major taxonomic databases such as the List of Prokaryotic names with Standing in Nomenclature (LPSN) or the NCBI Taxonomy. No type species has been designated, and some authorities treat the name as a nomen nudum—a name published without a formal description that would meet the rules of the International Code of Nomenclature for Prokaryotes.

Nomenclature and etymology: The name derives from sulfide and the diminutive suffix -illa, used in some taxonomic names.

Possible characteristics: In speculative discussions, Sulfideilla is described as possibly Gram-negative, rod-shaped, and capable of sulfide oxidation to sulfate in anaerobic or microaerophilic conditions. However, these attributes are unverified and not based on an official description.

Discovery and usage: The term has appeared in a few citations but has not led to a validated taxonomic proposal. As a result, it remains of limited use for researchers and is not applied in systematic classifications.

Significance: Because Sulfideilla lacks formal description and data, it has no approved strains, genomes, or ecological characterizations, and it serves mainly as an example of taxa that have not achieved standing.

References: (none)