554 



ORDER IV. EUBACTERIALES 



Source: Isolated from a spoiled, salted 

 ham; also from soil from Equatorial Africa. 



Habitat: Probably decomposing organic 

 material. 



2. Eubacteriuni niosii (Hauduroy et 

 al., 1937) Prevot, 1938. (Anaerobe Bacillus, 

 Niosi, Cent. f. Bakt., I Abt., Orig., 58, 1911, 

 193; Bacteroides niosii Hauduroy et al., 

 Diet. d. Bact. Path., 1937, 65; Pr6vot, Ann. 

 Inst. Past., 60, 1938, 294.) 



ni.o'si.i. M.L. gen. noun niosii of Niosi; 

 named for F. Niosi, the bacteriologist who 

 first isolated this organism. 



Short, thick rods, 0.8 to 1.2 by 1.0 to 1.5 

 microns, with rounded ends, occurring 

 singly, in pairs, in V-formation, in short 

 chains and in clumps. Non-motile. Gram- 

 positive in pus and in young cultures. 



Gas and fetid odor produced in culture 

 media. 



Gelatin: No growth. 



Deep agar colonies: Small, lenticular, 

 becoming mulberry-like. Gas is produced. 



Glucose broth: Turbid. Gas and fetid odor 

 produced. 



Tarozzi broth: Abundant turbidity. Very 

 fetid odor. 



Milk : Coagulated in 5 days ; curd digested. 



Indole not produced. 



Anaerobic. 



Optimum temperature, between 20° and 

 37° C. 



Pathogenic for rabbits and guinea pigs. 



Source: Isolated from a case of suppura- 

 tive pleurisy. 



Habitat: Respiratory tract. Uncommon. 



3. Eubacterium obstii Prevot, 1938. 

 (Bacillus B, Obst, Jour. Inf. Dis., U, 1919, 

 159 and 168; Eubacterium obsti (sic) Prevot, 

 Ann. Inst. Past., 60, 1938, 294.) 



ob'sti.i. M.L. gen. noun obstii of Obst; 

 named for M. Obst, the bacteriologist who 

 first isolated this organism. 



Short, straight rods. Non-motile. Gram- 

 positive. 



Gas produced in culture media. 



Deep agar colonies: Discoid. Gas is pro- 

 duced. 



Blood agar colonies: Discoid. Hemolysis. 



Blood media: Abundant growth. Fetid 

 gas produced. 



Indole not produced. 



Acid and gas from glucose. 



Ammonia, amines and nitrogen are pro- 

 duced. 



Anaerobic. 



Optimum temperature, 37.5° C. Killed at 

 65° C. 



Pathogenic for mice, guinea pigs and 

 marine fish, causing death. 



Source: Isolated from the intestines of 

 copepods, schizopods and shrimp. 



Habitat: Found in sea water and in the 

 intestines of marine fish. Rather common. 



4. Eubacterium rectale (Hauduroy et 

 al., 1937) Prevot, 1938. (Un bacille an- 

 aerobic, Grootten, Compt. rend. Soc. Biol., 

 Paris, 102, 1929, 43; Bacteroides rectalis Hau- 

 duroy et al.. Diet. d. Bact. Path., 1937, 72; 

 Prevot, Ann. Inst. Past., 60, 1938, 294.) 



rec'ta.le. L. part. adj. rectus straight; 

 M.L. neut.n. rectum the straight bowel, 

 rectum; M.L. adj. rectalis rectal. 



Straight or curved rods, 0.8 by 3.0 mi- 

 crons, with rounded ends; sinuous filaments 

 up to 20.0 microns in length may also occur. 

 Non-motile. Gram-positive. 



Gas produced in culture media. 



Gelatin: No liquefaction. 



Deep agar colonies: Spherical, 1 to 2 mm 

 in diameter, arborescent. Medium broken 

 by gas. 



Glucose broth: Abundant turbidity which 

 precipitates. Fetid gas produced. 



Blood broth: Hemolysis in 24 hours. 



Milk: Acidified; coagulated in 3 weeks. 

 Gas is produced. 



Coagulated proteins not attacked. 



Hydrogen sulfide is produced. 



Acid and gas from glucose, maltose and 

 lactose. 



Neutral red reduced in 24 hours. 



Anaerobic. 



Optimum temperature, 37° C. Killed at 

 56° C. 



Source: Isolated in association with a 

 rectal ulcer. 



Habitat: Found in the rectum. Very un- 

 common. 



5. Eubacteriuni quartum Prevot, 1938. 

 (Anaerob No. IV, Rodella, Ztschr. f. Hyg., 



