Name: Ichthyenterobacterium magnum Shakeela et al. 2015

Category: Species

Proposed as: sp. nov.

Etymology: ma’gnum. L. neut. adj. magnum, big, referring to cell size

Pronunciation (Latin), gender: … MA-n͡gnum, neuter

Type strain: DSM 26283; JCM 18636; KCTC 32140; Th6

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: JX412959 Analyse FASTA

Valid publication: Shakeela Q, Shehzad A, Tang K, Zhang Y, Zhang XH. Ichthyenterobacterium magnum gen. nov., sp. nov., a member of the family Flavobacteriaceae isolated from olive flounder (Paralichthys olivaceus). Int J Syst Evol Microbiol 2015; 65:1186-1192. 🇨🇳

IJSEM list: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 65, part 4 of the IJSEM. Int J Syst Evol Microbiol 2015; 65:2026-2027.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Psychroserpens magnus (Shakeela et al. 2015) Ping et al. 2023

Risk group: 1

• Synonyms:

  • Name	Kind
    Psychroserpens magnus (Shakeela et al. 2015) Ping et al. 2023	homotypic synonym, validly published under the ICNP

• Emendations:
  • García-López et al. 2019 Garcia-Lopez M, Meier-Kolthoff JP, Tindall BJ, Gronow S, Woyke T, Kyrpides NC, Hahnke RL, Goker M. Analysis of 1,000 Type-Strain Genomes Improves Taxonomic Classification of Bacteroidetes. Front Microbiol 2019; 10:2083. 🇩🇪 Oren A, Garrity GM. List of changes in taxonomic opinion no. 32. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2020; 70:4061-4090.

• Notes:
  • 🥇 Nomenclatural type of the genus Ichthyenterobacterium Shakeela et al. 2015. Publication: Shakeela Q, Shehzad A, Tang K, Zhang Y, Zhang XH. Ichthyenterobacterium magnum gen. nov., sp. nov., a member of the family Flavobacteriaceae isolated from olive flounder (Paralichthys olivaceus). Int J Syst Evol Microbiol 2015; 65:1186-1192. 🇨🇳
  • 😢 The terminology used by the authors is in line with many other taxonomic studies and does not negatively affect their main results; some improvements may nevertheless be possible. Contrasting the term "chemotaxonomic" with "phenotypic" is not recommended. Using the term "phylogenetic data" (or equivalent) for sequence data is not advocated. Whether taxa can have "members" is debatable. See the LPSN phylogeny page for details. Publication: Göker M. What can genome analysis offer for bacteria? In: Bridge P, Smith D, Stackebrandt E (eds), Trends in the systematics of bacteria and fungi, CAB International, Wallingford, 2021, p. 255-281. 🇬🇧
  • ❗ Ichthyenterobacterium magnum is the correct name instead 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 Ichthyenterobacterium.
  • 😷 The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1. — If in doubt, use the risk group given in the regulations for your country and, if these are not available, use the risk group given in the catalogue of the culture collection from which you have obtained or intend to obtain the strain.
  • 🎓 Name mentioned 3 times in PubMed until 2025-06-04.

Parent taxon: Ichthyenterobacterium Shakeela et al. 2015

Assigned by: Shakeela Q, Shehzad A, Tang K, Zhang Y, Zhang XH. Ichthyenterobacterium magnum gen. nov., sp. nov., a member of the family Flavobacteriaceae isolated from olive flounder (Paralichthys olivaceus). Int J Syst Evol Microbiol 2015; 65:1186-1192. 🇨🇳

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Record number: 792715