Name: Capnocytophaga ochracea (Prévot et al. 1956) Leadbetter et al. 1982

Category: Species

Proposed as: comb. nov.

Etymology: och.ra’ce.a L. n. ochra, ochre, yellow ochre; N.L. fem. adj. ochracea, of the color of ochre

Gender: feminine

Type strain: ATCC 27872; CCUG 9716; CIP 103448; DSM 7271; JCM 12966; NCTC 12371

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB671761 Analyse FASTA

Effective publication: Leadbetter ER, Holt SC, Socransky SS. Capnocytophaga: new genus of gram-negative gliding bacteria. I. General characteristics, taxonomic considerations and significance. Arch Microbiol 1979; 122:9-16.

IJSEM list: Anonymous. Validation list no. 8. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1982; 32:266-268.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 2

• Synonyms:

  • Name	Kind
    Bacteroides ochraceus (Prévot et al. 1956) Holdeman and Moore 1972 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP

• Notes:
  • Nomenclatural type of the genus Capnocytophaga Leadbetter et al. 1982. Publication: Leadbetter ER, Holt SC, Socransky SS. Capnocytophaga: new genus of gram-negative gliding bacteria. I. General characteristics, taxonomic considerations and significance. Arch Microbiol 1979; 122:9-16.
  • Designation of ATCC 33596 as Neotype by Leadbetter et al. 1982 is not in accordance with the rules of the code. Publication: Parker CT, Tindall BJ, Garrity GM. International Code of Nomenclature of Prokaryotes. Int J Syst Evol Microbiol 2019; 69:S1-S111.
  • The genome of the type strain was sequenced as part of the GEBA (Genomic Encyclopedia of Bacteria and Archaea) project. Publication: Mavromatis K, Gronow S, Saunders E, Land M, Lapidus A, Copeland A, Glavina del Rio T, Nolan M, Lucas S, Chen F, et al. Complete genome sequence of Capnocytophaga ochracea type strain (VPI 2845T). Standards in Genomic Sciences 2009; 1:101-109.
  • However, in a footnote, the associate editor, IJSB, wrote: "Through a clerical error, the wrong strain was cited as the type in the original publication; the strain cited here is the actual type (S. Holt, personal communication to the editor, IJSB)" [2]. Publication: Anonymous. Validation list no. 8. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1982; 32:266-268.
  • In the first edition of the Bergey's Manual of Systematic Bacteriology, Capnocytophaga ochracea is erroneously (?) cited as Capnocytophaga ochracea Leadbetter, Holt and Socransky 1982 and the type strain is strain 25 = ATCC 33596 [4]. Publication: Moore WEC, Cato EP, Moore LVH. Index of the bacterial and yeast nomenclatural changes published in the International Journal of Systematic Bacteriology since the 1980 Approved Lists of Bacterial Names (1 January 1980 to 1 January 1985). Int. J. Syst. Bacteriol. 1985; 35:382-407.
  • In the first edition of the Bergey's Manual of Systematic Bacteriology, Capnocytophaga ochracea is erroneously (?) cited as Capnocytophaga ochracea Leadbetter, Holt and Socransky 1982 and the type strain is strain 25 ATCC 33596 [4]. Publication: Holt SC, Kinder A. Genus II. Capnocytophaga Leadbetter, Holt and Socransky 1982, 266VP (Effective publication: Leadbetter, Holt and Socransky 1979, 13). In: Staley JT, Bryant MP, Pfennig N, Holt JG (eds), Bergey's Manual of Systematic Bacteriology, first edition, vol. 3, The Williams & Wilkins Co., Baltimore, 1989, p. 2050-2058.
  • On the validation list n° 8, Capnocytophaga ochracea is cited as a new species (Capnocytophaga ochracea Leadbetter et al. 1982, sp. nov.) and the type strain is strain 25 = ATCC 33596. In the effective publication by Leadbetter et al., the type strain is ATCC 27872 [1]. However, in a footnote, the associate editor, IJSB, wrote: "Through a clerical error, the wrong strain was cited as the type in the original publication; the strain cited here is the actual type (S. Holt, personal communication to the editor, IJSB)" [2]. Publication: Leadbetter ER, Holt SC, Socransky SS. Capnocytophaga: new genus of gram-negative gliding bacteria. I. General characteristics, taxonomic considerations and significance. Arch Microbiol 1979; 122:9-16.
  • On the Validation List no. 8, Capnocytophaga ochracea is cited as a new species (Capnocytophaga ochracea Leadbetter et al. 1982, sp. nov.) and the type strain is strain 25 ATCC 33596 In the effective publication by Leadbetter et al., the type strain is ATCC 27872 [1]. Publication: Leadbetter ER, Holt SC, Socransky SS. Capnocytophaga: new genus of gram-negative gliding bacteria. I. General characteristics, taxonomic considerations and significance. Arch Microbiol 1979; 122:9-16.
  • The type strain 25 = ATCC 33596 of Capnocytophaga ochracea Leadbetter et al. 1982, sp. nov. has 77% DNA homology with the type strain ATCC 27872 of Bacteroides ochraceus (Prévot et al. 1956) Holdeman and Moore 1972 (Approved Lists 1980). Therefore, Capnocytophaga ochracea should be a new combination, Capnocytophaga ochracea (Prévot et al. 1956) Leadbetter et al. 1982 and the type strain should be ATCC 27872 [3]. Publication: Anonymous. Validation list no. 8. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1982; 32:266-268.
  • The type strain 25 ATCC 33596 of Capnocytophaga ochracea Leadbetter et al. 1982, sp. nov. has 77% DNA homology with the type strain ATCC 27872 of Bacteroides ochraceus (Prévot et al. 1956) Holdeman and Moore 1972 (Approved Lists 1980). Therefore, Capnocytophaga ochracea should be a new combination, Capnocytophaga ochracea (Prévot et al. 1956) Leadbetter et al. 1982 and the type strain should be ATCC 27872 [3]. Publication: Moore WEC, Cato EP, Moore LVH. Index of the bacterial and yeast nomenclatural changes published in the International Journal of Systematic Bacteriology since the 1980 Approved Lists of Bacterial Names (1 January 1980 to 1 January 1985). Int. J. Syst. Bacteriol. 1985; 35:382-407.

Parent taxon: Capnocytophaga Leadbetter et al. 1982

Assigned by: Leadbetter ER, Holt SC, Socransky SS. Capnocytophaga: new genus of gram-negative gliding bacteria. I. General characteristics, taxonomic considerations and significance. Arch Microbiol 1979; 122:9-16.

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Record number: 774469