According to Ludwig et al. (2021), this "species is a true member of the genus Aeromonas and may be reclassified".Publication:
Ludwig W, Viver T, Westram R, Francisco Gago J, Bustos-Caparros E, Knittel K, Amann R, Rossello-Mora R. Release LTP_12_2020, featuring a new ARB alignment and improved 16S rRNA tree for prokaryotic type strains. Syst Appl Microbiol 2021; 44:126218.
Yarza et al. (2013) expected for accession JN175340, originating from the alleged type-strain deposit CIP 106116, an affiliation with Pasteurellaceae (Gammaproteobacteria) but observed an affiliation with Aeromonadaceae (Gammaproteobacteria) and 99.8% similarity against Aeromonas bestiarum.Publication:
Yarza P, Sproer C, Swiderski J, Mrotzek N, Spring S, Tindall BJ, Gronow S, Pukall R, Klenk HP, Lang E, et al. Sequencing orphan species initiative (SOS): Filling the gaps in the 16S rRNA gene sequence database for all species with validly published names. Syst Appl Microbiol 2013; 36:69-73.
According to De Ley et al. 1990  this taxon belongs in the Aeromonadaceae Colwell et al. 1986.Publication:
Kilian M. A taxonomic study of the genus Haemophilus, with the proposal of a new species. J Gen Microbiol 1976; 93:9-62.
According to Kilian 1976  and Broom and Sneath 1981 , Haemophilus piscium does not belong to the genus Haemophilus Winslow et al. 1917 (Approved Lists 1980).Publication:
Euzéby JP. Corrigenda to the Approved Lists of Bacterial Names and to the amended edition of the Approved Lists of Bacterial Names. Int. J. Syst. Bacteriol. 1997; 47:1271-1272.
According to Paterson et al. 1980 , Austin et al. 1998  and Thornton et al. 1999 , Haemophilus piscium is, in fact, atypical Aeromonas salmonicida (Lehmann and Neumann 1896) Griffin et al. 1953 (Approved Lists 1980).Publication:
Broom A, Sneath PH. Numerical taxonomy of Haemophilus. J Gen Microbiol 1981; 126:123-149.
In the ATCC database and CCUG database, the type strain ATCC 10801 = CCUG 15943 is cited as a strain of Aeromonas salmonicida subsp. achromogenes (Smith 1963) Schubert 1967 (Approved Lists 1980).Publication:
De Ley J, Mannheim W, Mutters R, Piechulla K, Tytgat R, Segers P, Bisgaard M, Frederiksen W, Hinz KH, Vanhoucke M. Inter- and intrafamilial similarities of rRNA cistrons of the Pasteurellaceae. Int J Syst Bacteriol 1990; 40:126-137.
On the Approved Lists of Bacterial Names, this nomenclatural name is incorrectly cited as Haemophilus piscium Sniezko (sic) et al. 1950 . This corrigendum has been omitted from the Approved Lists of Bacterial Names (Amended Edition) .Publication:
Hill LR, Skerman VBD, Sneath PHA. Corrigenda to the Approved Lists of Bacterial Names edited for the International Committee on Systematic Bacteriology. Int. J. Syst. Bacteriol. 1984; 34:508-511.
The full TRBA 466 classification is: risk group = 2, note = "t".