Name: Lacrimispora sphenoides (Douglas et al. 1919) Haas and Blanchard 2020

Category: Species

Proposed as: comb. nov.

Basonym: "Bacillus sphenoides" Douglas et al. 1919

Etymology: sphe.no’i.des Gr. n. sphên sphênos, wedge; Gr. adj. suff. -oides, resembling, similar; from Gr. suff. eides, ressembling, similar; from Gr. neut. n. eidos, that which is seen, form, shape, figure; N.L. adj. sphenoides, wedge-shaped

Gender: feminine

Type strains: ATCC 19403; CIP 104283; DSM 632; JCM 1415; LMG 10390; NCCB 77027; NCIB 10627; NCTC 507; strain Thorlby

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: HM245951 Analyse FASTA

Valid publication: Haas KN, Blanchard JL. Reclassification of the Clostridium clostridioforme and Clostridium sphenoides clades as Enterocloster gen. nov. and Lacrimispora gen. nov., including reclassification of 15 taxa. Int J Syst Evol Microbiol 2020; 70:23-34.

IJSEM list: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 70, part 1 of the IJSEM. Int J Syst Evol Microbiol 2020; 70:2167-2173.

Nomenclatural status: validly published

Taxonomic status: correct name

• Synonyms:

  • Name	Kind
    Desulfotomaculum guttoideum Gogotova and Vainstein 1986	heterotypic synonym, validly published
    Clostridium sphenoides (Douglas et al. 1919) Bergey et al. 1923 (Approved Lists 1980)	homotypic synonym, validly published
    "Bacillus sphenoides" Douglas et al. 1919	homotypic synonym, not validly published

• Notes:
  • Nomenclatural type of the genus Lacrimispora Haas and Blanchard 2020. Publication: Haas KN, Blanchard JL. Reclassification of the Clostridium clostridioforme and Clostridium sphenoides clades as Enterocloster gen. nov. and Lacrimispora gen. nov., including reclassification of 15 taxa. Int J Syst Evol Microbiol 2020; 70:23-34.
  • According to Haas and Blanchard (2020), this species is an earlier heterotypic synonym of Desulfotomaculum guttoideum Gogotova and Vainstein 1986. Publication: Haas KN, Blanchard JL. Reclassification of the Clostridium clostridioforme and Clostridium sphenoides clades as Enterocloster gen. nov. and Lacrimispora gen. nov., including reclassification of 15 taxa. Int J Syst Evol Microbiol 2020; 70:23-34.
  • Synonymy of this taxon was mentioned in an IJSEM list. Publication: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 70, part 1 of the IJSEM. Int J Syst Evol Microbiol 2020; 70:2167-2173.

Parent taxon: Lacrimispora Haas and Blanchard 2020

Assigned by: Haas KN, Blanchard JL. Reclassification of the Clostridium clostridioforme and Clostridium sphenoides clades as Enterocloster gen. nov. and Lacrimispora gen. nov., including reclassification of 15 taxa. Int J Syst Evol Microbiol 2020; 70:23-34.

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