FAMILY III. ACHROMOBACTERACEAE 



319 



Source: Isolated from marine bottom de- 

 posits. 

 Habitat: Sea water. 



18. Flavobacteriiim okeanokoites Zo- 



Bell and Upham, 1944. (Bull. Scripps Inst, 

 of Oceanography, Univ. of Calif., 5, 1944, 

 270.) 



o.ke.a.no.ko.i'tes. Gr. mas.n. oceanus 

 the ocean; Gr. fem.n. coite, coites bed; M.L. 

 fem.gen.n. okeanokoites of the ocean bed. 



Rods, 0.8 to 0.9 b}^ 1.2 to 1.6 microns, with 

 rounded ends, occurring singly and in long 

 chains; many cells are coccoid. Motile by 

 means of peritrichous fiagella. Gram-nega- 

 tive. 



All media except the fresh-water broth, 

 litmus milk and potato were prepared with 

 sea water. 



Gelatin colonies: Small, circular, conve.x, 

 entire, rust- or orange-colored; digest gela- 

 tin. 



Gelatin stab: Slow, napiform liquefaction; 

 j'ellow growth. 



Agar colonies: 2 mm in diameter, circular, 

 entire, smooth, convex. 



Agar slant: Moderate, filiform, glistening, 

 butyrous growth with yellow pigment. 



Sea-water broth: No pellicle; moderate 

 turbidity; moderate, viscid sediment. 



Fresh-water broth: Good growth. 



Litmus milk: No visible change. 



Potato: No visible growth. 



Indole not produced. 



Hydrogen sulfide is produced. 



No acid or gas from glucose, lactose, 

 maltose, sucrose, glycerol, mannitol, xylose 

 or salicin. 



Starch not hydrolyzed. 



Casein is hydrolyzed. 



Non-lipolytic. 



Nitrites slowly produced from nitrates. 



Ammonia produced from peptone but not 

 from urea. 



Aerobic, facultatively anaerobic. 



Optimum temperature, between 20° and 

 25° C. 



Source: Isolated from marine mud. 



Habitat: Sea water. 



19. FJavobacterium marinovirosum 



ZoBell and Upham, 1944. (Bull. Scripps 



Inst, of Oceanograph}', Univ. of Calif., 5, 

 1944, 271.) 



ma. ri.no. vi.ro 'sum. L. adj. marinus of 

 the sea; L. adj. virosus slimy; M.L. adj. 

 marinovirosus probably intended to mean a 

 marine slimy organism. 



Rods, 0.7 to 0.8 by 0.8 to 2.8 microns, with 

 rounded ends, occurring singly and in long 

 chains. Motile by means of peritrichous 

 fiagella. Gram-negative. 



All media except the fresh-water broth, 

 litmus milk and potato were prepared with 

 sea water. 



Gelatin colonies: Small, circular, raised, 

 rust-colored; gelatin slowly digested. 



Gelatin stab: Crateriform liquefaction 

 becoming stratiform. Light orange pigment. 



Agar colonies: 1 to 2 mm, circular, convex, 

 entire, smooth. 



Agar slant: Moderate, filiform, glistening, 

 mucoid growth with grayish yellow pigment. 



Sea-water broth: Heavy turbidity; no 

 pellicle; abundant, viscid sediment. 



Fresh-water broth: Good growth. 



Litmus milk: No visible change. 



Potato: No visible growth. 



Indole not produced. 



Hydrogen sulfide is produced. 



Does not ferment ghxerol, glucose, lac- 

 tose, maltose, sucrose, mannitol, xylose or 

 salicin. 



Starch not hydrolyzed. 



Casein not hydrolyzed. 



Non-lipolytic. 



Nitrites not produced from nitrates. 



Ammonia produced from peptone but not 

 from urea. 



Aerobic, facultatively anaerobic. 



Optimum temperature, between 20° and 

 25° C. 



Source: Isolated from sea water and ma- 

 rine mud. 



Habitat: Sea water. 



20. Flavobaclerium suaveolens Soppe- 

 land, 1924. (Jour. Agr. Res., 28, 1924, 275.) 



sua. ve'o. lens. L. adj. suaveolens having 

 a sweet odor. 



Rods, 0.6 to 0.8 by 1.0 to 1.2 microns, with 

 rounded ends, occurring singly and in pairs. 

 Motile by means of peritrichous fiagella. 

 Gram-negative on plain agar; Gram-posi- 

 tive in young culture on milk powder agar. 



