homotypic synonym, validly published under the ICNP
Desulfovibriomagneticus is the correct name if this species is regarded as a separate species (i.e., if its nomenclatural type is not assigned to another species whose name is validly published, legitimate and not rejected and has priority) within a separate genus Desulfovibrio.
The specific epithet magneticus is a Latin adjective not a Neo-Latin adjective as cited in the paper by Sakaguchi et al. 2002.Publication:
Euzeby JP. List of Bacterial Names with Standing in Nomenclature: a folder available on the Internet. Int J Syst Bacteriol 1997; 47:590-592.