596 



ORDER IV. EUBACTERIALES 



137, 1953, 1-10) found a culture of this organ- 

 ism isolated from a submandibular abscess 

 to be identical with C. liquefaciens as recog- 

 nized by Prevot and also identical with 

 cultures of C. acnes as isolated and identi- 

 fied by Lentze (Zent. f. Bakt., I Abt., Orig., 

 155, 1950, 290). Since that time, Seeliger 

 (personal communication, December, 1954) 

 has had opportunity to study the cultures 

 of C. acnes found in both the National Col- 

 lection of Type Cultures (London) and the 

 American Type Culture Collection (Wash- 

 ington), all isolated from acne pustules, 

 and he has found all of them to be identical. 

 At the same time he finds these cultures to 

 be the same as the cultures that he examined 

 in 1953. All cultures agree with the brief 

 but characteristic description of C. acnes 

 as given by Gilchrist. As the name C. acnes 

 has priority and as the name C. liquefaciens 

 is an illegitimate homonym, the former 

 binomial is used here. 



Source: Originally isolated from acne 

 pustules. The specific epithet "acnes" was 

 given by Gilchrist to indicate the source of 

 this culture, and it should not be interpreted 

 as meaning that this species is the cause of 

 acne. 



Habitat : While this species appears to be 

 an organism commonly found in acne pus- 

 tules, it also occurs in other types of lesions 

 in the human body or even as a saprophyte 

 in the intestine, in skin, in hair follicles and 

 in sewage. It probably also occurs in domes- 

 tic and wild animals. 



30. Corynebacteriuni parvuni Prevot, 

 1940. {Corynebacterium parvum injectiosum 

 Mayer, Cent. f. Bakt., I Abt., Orig., 98, 

 1926, 370; Prevot, Man. de Class, et Determ. 

 des Bacteries Anaerobies. Monographic, 

 Inst. Past., Paris, 1940, 202.) 



par'vum. L. adj. parvus small. 



Small, slightly curved, club-shaped rods, 

 usually 0.3 by 1.4 microns, occurring in pairs 

 in which the cells are either parallel to each 

 other or in an angular arrangement due to 

 snapping division. Non-motile. Gram- 

 positive. 



Gelatin: No liquefaction. 



Nutrient broth: Slightly turbid. 



Carbohydrates generally not attacked; 

 slight acid from glucose. 



Neutral red not reduced. 



Blood serum agar: Numerous, porcelain- 

 w^hite colonies. 



Obligately anaerobic. 



Pathogenic to white mice. 



Serology: See Linzenmeier (Ann. Inst. 

 Past., 87, 1954, 572). 



Source : Isolated from blood from a woman 

 with a postnatal fever. Also found in various 

 infections of the female urogenital organs. 



Habitat: Found in female urogenital or- 

 gans so far as known. 



31. Corynebacterium granulosum Pre- 

 vot, 1938. (Bacille granuleux, Jungano, 

 Compt. rend. Soc. Biol., Paris, 66, 1909, 

 123; Prevot, Ann. Inst. Past., 60, 1938, 304.) 



gra.nu.lo'sum. L. noun granula a little 

 grain; L. adj. granulosus full of granules. 



Slender, medium-sized rods resembling 

 those of Corynebacterium diphtheriae. Non- 

 motile. Show bipolar staining and meta- 

 chromatic granules. Gram-positive. 



Gas not produced in culture media. 



Gelatin: No liquefaction. 



Agar stab: Round colonies; no gas. 



Glucose broth: Turbid; no gas. 



Milk: Not coagulated. 



Coagulated egg white: Not attacked. 



Glucose and galactose are acidified. 



Anaerobic. 



Optimum temperature, 37° C. 



Not pathogenic. 



Serology: See Linzenmeier (Ann. Inst. 

 Past., 87, 1954,572). 



Source: Isolated from the intestines of 

 white rats. 



32. Corynebacteriuni aviduni (Eggerth, 

 1935) Prevot, 1938. (Bacteroides avidus Eg- 

 gerth, Jour. Bact., SO, 1935, 289; Prevot, 

 Ann. Inst. Past., 60, 1938, 304.) 



a'vi.dum. L. adj. avidus greedy, vora- 

 cious. 



Rods, 0.5 to 1.0 by 1.0 to 2.5 microns, with 

 pointed or rounded ends, frequently slightly 

 curved, occasionally branched. Non-motile. 

 Gram-positive. 



Gelatin liquefied. 



Glucose agar colonies: 2 to 3 mm in di- 

 ameter, raised, yellowish white, smooth. 



Glucose broth: Turbid; acidified (final 

 pH, 4.8). 



