Culture media
Biochemical tests
Family Streptococcaceae
Deibel and Seeley 1974
Streptococcus acidominimus
Granulicatella/Abiotrophia adiacens (S. adjacens)
Streptococcus agalactiae (S. difficilis)
Streptococcus alactolyticus
Streptococcus anginosus
Streptococcus australis
Streptococcus bovis
Streptococcus caballi
Streptococcus cameli *
Streptococcus canis
Streptococcus caprinus  (see S. gallolyticus)
Streptococcus castoreus
Streptococcus constellatus subsp. constellatus
Streptococcus constellatus subsp. pharyngis
Streptococcus constellatus subsp. viborgensis
Streptococcus criceti
Streptococcus cristatus
Streptococcus cuniculi
Streptococcus danieliae *
Streptococcus defectivus  (see Abiotrophia defectiva)
Streptococcus dentapri
Streptococcus dentasini
Streptococcus dentirousetti
Streptococcus dentisani
Streptococcus devriesei
Streptococcus didelphis
Streptococcus downei
Streptococcus dysgalactiae subsp. dysgalactiae
Streptococcus dysgalactiae subsp. equisimilis
Streptococcus entericus
Streptococcus equi subsp. equi
Streptococcus equi subsp. ruminatorum
Streptococcus equi subsp. zooepidemicus
Streptococcus equinus
Streptococcus ferus
Streptococcus gallinaceus
Streptococcus gallolyticus
Streptococcus gordonii
Streptococcus halichoeri
Blautia (Streptococcus) hansenii
Streptococcus henryi
Streptococcus hongkongensis
Streptococcus hyointestinalis
Streptococcus hyovaginalis
Streptococcus ictaluri
Streptococcus infantarius
Streptococcus infantis
Streptococcus iniae (S. shiloi)
Streptococcus intermedius
Streptococcus intestinalis
Streptococcus lactarius
Streptococcus loxodontisalivarius
Streptococcus lutetiensis
Streptococcus macacae
Streptococcus marimammalium
Streptococcus massiliensis
Streptococcus merionis
Streptococcus milleri   (see S. anginosus)
Streptococcus minor
Streptococcus mitior (not valid name; close to S. mitis)
Streptococcus mitis
Gemella (Streptococcus) morbillorum
Streptococcus moroccensis
Streptococcus mutans
Streptococcus oligofermentans
Streptococcus oralis
Streptococcus oriloxodontae
Streptococcus orisasini
Streptococcus orisratti
Streptococcus orisuis
Streptococcus ovis
Streptococcus parvulus (Atopobium parvulum)
Streptococcus parasanguinis
Streptococcus parasuis
Streptococcus parauberis  (see S. uberis)
Streptococcus pasteurianus (see S. gallolyticus)
Streptococcus peroris
Streptococcus phocae
Streptococcus pleomorphus  * (moved to genus Faecalicoccus)
Streptococcus pluranimalium
Streptococcus plurextorum
Streptococcus pneumoniae
Streptococcus porci
Streptococcus porcinus
Streptococcus porcorum
Streptococcus pseudopneumoniae
Streptococcus pseudoporcinus
Streptococcus pyogenes
Streptococcus ratti
Streptococcus rifensis
Streptococcus rubneri
Streptococcus rupicaprae
Streptococcus salivarius
Streptococcus saliviloxodontae
Streptococcus sanguinis
Streptococcus sinensis
Streptococcus sobrinus
Streptococcus suis
Streptococcus thermophilus  (see S. salivarius)
Streptococcus thoraltensis
Streptococcus tigurinus
Streptococcus troglodytae
Streptococcus troglodytidis
Streptococcus uberis
Streptococcus urinalis
Streptococcus ursoris
Streptococcus vestibularis
Gram-positive, under 2 μm in diameter, spherical cells. Non- or
rarely motile. Facultative anaerobes, cheomoorganotrophs -
metabolism fermentative (CO
2, ethanol, lactic, acetic & formic
acids produced from carbohydrates). Nutritional requirements are
usually complex; optimal growth temperature 37 °C. Catalase-
and oxidase-negative.
Genus Streptococcus
Rosenbach 1884
Genus Lactococcus
Schleifer, Kraus, Dvorak, Kilpper-Bälz,
Collins and Fischer 1986
* species not included in ABIS
biochemical database
(c) Costin Stoica
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Genus Lactovum
Matthies, Gössner, Acker, Schramm
and Drake 2005
Gram-positive round or ovoid cells, nonmotile. Not beta-hemolytic.
Facultatively anaerobic. Catalase-negative. Grow at 10ºC but not
at 45 ºC. Metabolism fermentative. The predominant end product
of glucose fermentation is L(+)-lactic acid.

Streptococcus bovis Orla-Jensen 1919
is a later heterotypic synonym of
Streptococcus equinus Andrewes and
Horder 1906

Streptococcus caprinus Brooker et al.
1996 is a later heterotypic synonym of

Streptococcus gallolyticus
Osawa et al.

Streptococcus shiloi Eldar et al. 1995
is a later heterotypic synonym of
Streptococcus iniae Pier & Madin 1976

Streptococcus sanguis and
Streptococcus parasanguis names
have been corrected by Trüper and De'
Clari 1997 as
Streptococcus sanguinis
and S. parasanguinis, respectively

Streptococcus parauberis Williams and
Collins 1990 was previously known as
Streptococcus uberis genotype II