Broth: Light yellow pellicle and sediment. Indole production not recorded. Carbohydrates not attacked. Starch slightly hydrolyzed. Nitrite production not recorded. Aerobic, facultatively anaerobic. Temperature relations: Optimum, 23° C. Minimum, between 5° and 10° C. Maxi- mum, between 27° and 30° C. Source : Isolated from water from the Nor- wegian Coast. Habitat: Sea water. 11. Agarbacterium boreale (Lundes- tad, 1928) Breed, comb. nov. (Bacterium boreale Lundestad, Cent. f. Bakt., II Abt., 75, 1928, 333.) bo.re.a'le. L. adj. borealis northern. Rods, 0.5 to 0.6 by 1.6 to 2.6 microns, with rounded ends, occurring singly. Non-motile. Gram -negative. Fish gelatin colonies: Circular, opaque, glistening, concentrically ringed, yellow. Fish gelatin stab : Yellow with crateriform liquefaction. Sea-water agar colonies: Circular, flat, opaque, glistening, light yellow; diffuse margin. Agar is disintegrated. Fish agar slant: Yellow, flat, glistening, opaque, entire growth. Broth: Finely flocculent, yellow sediment. Indole production not recorded. Carbohydrates not attacked. Starch slightly hydrolyzed. Nitrite production not recorded. Aerobic, facultatively anaerobic. Temperature relations: Optimum, 23° C. Minimum, between 5° and 10° C. Maximum, between 27° and 30° C. Source : Isolated from water from the Nor- wegian Coast. Habitat: Sea water. 12. Agarbacterium delesseriae (Lund- estad, 1928) Breed, comb. nov. {Bacterium delesseriae Lundestad, Cent. f. Bakt., II Abt., 75, 1928, 332.) de.les.se'ri.ae. M.L. noun Delesseria a genus of red algae; M.L. gen. noun delesseriae of Delesseria. Rods, 0.5 to 0.6 by 1.6 to 2.6 microns, with rounded ends, occurring singly. Non-motile. Gram-negative. Fish gelatin colonies: Circular, trans- parent, glistening, concentrically ringed, yellow. Fish gelatin stab: Crateriform liquefac- tion; yellow sediment. Seaweed agar colonies: Circular, flat, concentrically ringed, light yellow. Agar ia disintegrated. Fish agar slant : No growth. Broth: Turbid with flocculent pellicle and sediment, light yellow. Indole production not recorded. Carbohydrates not attacked. Starch slightly hydrolyzed. Nitrite production not recorded. Aerobic, facultatively anaerobic. Temperature relations: Optimvmi, 23° C. Minimum, between 5° and 10° C. Maximum, between 27° and 30° C. Source : Isolated from water from the Nor- wegian Coast. Habitat: Sea water. Genus V. Beneckea Campbell, gen. nov.* Be.neck'e.a. M.L. fem.gen.n. Beneckea of Benecke; named for W. Benecke, the German bacteriologist who was the first to isolate chitin-decomposing bacteria. Small to medium-sized rods. Motile by means of peritrichous flagella. Gram-negative. May or may not produce chromogenesis. Acid usually produced from carbohydrates. Chitin is digested. Found in salt- and fresh-water and in soil. The type species is Beneckea labra (Campbell and Williams) Campbell. Key to the species of genus Beneckea. Gelatin not liquefied. A. Nitrites produced from nitrates. 1. Beneckea labra.
- Prepared by Dr. L. Leon Campbell, Jr., State College of Washington, Pullman, Wash-
ington, June, 1954.
