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MANUAL OF DETERMINATIVE BACTERIOLOGY 



Fish-agar slant: Yellow, flat, glisten- 

 ing, opaque, entire growth. 



Broth: Finely flocculent, yellow sedi- 

 ment . 



Indole not reported. 



Nitrites not reported. 



No action on carbohydrates. 



Slight hydrolysis of starch. 



Aerobic, facultative. 



Optimum temperature 23°C. 



Source : Sea water of Norwegian Coast. 



Habitat: Sea water. 



33. Bacterium ceramicola Lundestad. 

 (Lundestad, Cent. f. Bakt., II Abt., 75, 

 1928, 332; Flavohacteriian ceramicola 

 Bergey et al., Manual, 3rd ed., 1930, 154.) 

 From Greek, living in earthenware. 



Rods: 0.5 to 0.6 by 1.4 to 2.4 microns, 

 with rounded ends, occurring singly and 

 lying side-by-side. Non-motile. Gram- 

 negative. 



Fish-gelatin colonies: Circular, glis- 

 tening, transparent, yellow. 



Fish-gelatin stab: Slight, yellow sur- 

 face growth. Liquefaction crateriform. 



Sea-water agar colonies: Circular, flat, 

 transparent, glistening, diffuse margin, 

 light 3'ellow. Agar is disintegrated. 



Fish-agar slant: Moderate, yellow, 

 flat, entire, glistening, opaque growth. 



Broth: Light yellow pellicle and sedi- 

 ment. 



Indole not reported. 



Nitrites not reported. 



No action on carbohydrates. 



Slight hydrolysis of starch. 



Aerobic, facultative. 



Optimum temperature 23°C. 



Source: Sea water of Norwegian 

 Coast. 



Habitat: Sea water. 



34. Bacterium rhodomelae Lundestad. 

 (Lundestad, Cent. f. Bakt., II Abt., 75, 

 1928, 331; Flavobacterium rhodomelae 

 Bergey et al.. Manual, 3rd ed., 1930, 

 146.) 



Rods: 0.5 to 0.8 by 1.2 to 2.0 microns, 

 with rounded ends, occurring singly, in 



})airs, and at times in short chains. Mo- 

 tile. Gram-negative. 



Fish-gelatin colonies: Circular, 

 slightly glistening, opaque, white. 



Fish-gelatin stab: Rapid infundibuli- 

 form liquefaction. 



Sea-weed agar colonies: Circular, flat, 

 thin, transparent, glistening, entire. 

 Agar is dissolved. 



Glucose agar slant: Moderate growth, 

 white, becoming orange-yellow, flat, un- 

 dulate margin, opaque, glistening. 



Broth : Turbid, with pellicle and gray- 

 ish-yellow, slimy sediment. 



Indole not formed. 



Nitrites not produced from nitrates. 



No action on carbohydrates. 



Very slight hydrolysis of starch. 



.\erobic, facultative. 



Optimum temperature 20° to 25°C. 



Source : Sea water of Norwegian Coast. 



Habitat: Sea water. 



35. Bacteriiun alginovorum Waksman, 

 Carey and Allen. (Jour. Bact., 28, 

 1934, 215.) From M. L., alginic and 

 Latin voro, devour. 



Rods: 0.75 to 1.2 by 1.5 to 2.0 microns, 

 with rounded to almost elliptical ends, 

 especially when single, occurring fre- 

 quentl}^ in pairs and even in chains. 

 Actively motile. Capsule-forming. 

 Gram-negative. 



Alginic acid plate : Colony large, white 

 in appearance with coarse granular cen- 

 ter, entire margin. Clears up turbidity 

 caused by the alginic acid on plate. 

 No odor. 



Alginic acid liquid medium: Heavy 

 pellicle formation. Active production 

 of an enzyme, alginase, which brings 

 about the disappearance of alginic pre- 

 cipitate in sea water medium. 



Salt water medium: A slimy pellicle of 

 a highly tenacious nature is produced, 

 the whole medium later turning to a soft 



jelly. 



Sea water gelatin: Active and rapid 

 liquefaction in two to six days, at 18°C; 



