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The nomenclatural type of the genus Deleya and the consequences of Deleya aesta and Alcaligenes aquamarinus being synonyms
Abstract
The genus Deleya was created to encompass a number of marine organisms that had previously been classified in diverse genera. Deleya aesta was designated as the type species of the genus. Subsequent work indicated that Deleya aesta, Alcaligenes aquamarinus and Alcaligenes faecalis subsp. homari were heterotypic synonyms. Consequently, Akagawa & Yamasato (Int J Syst Bacteriol 39, 462–466, 1989) concluded that, based on Rules 23a and 51b of the Bacteriological Code (1975 Revision), the oldest legitimate species epithet was aquamarinus and the type species of the genus Deleya should therefore be changed to Deleya aquamarina. Dobson & Franzmann (Int J Syst Bacteriol 46, 550–558, 1996) concluded that it was not possible to distinguish between members of the genus Deleya and members of the genus Halomonas Vreeland et al. 1980 , leading them to transfer members of the genus Deleya to the genus Halomonas and resulting in the creation of a new combination, Halomonas aquamarina. Closer examination of some of these changes indicates that they are not all in accordance with the Rules of the Bacteriological Code (1975 or 1990 Revisions).
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