Frost & Noland—Names of Certain Milk Bacteria. 221 
Bacterium robertii (conn, esten & stocking) 
B. lactis Bohertii conn, esten & stocking, 1906, p. 182. 
Note: Description suggests Bact. vermiculosum (Zimmerman) Chester, 
1901, p. 157, or B. virmiculosus Zimmerman, Die Bak. Nutz. u. Trinkwasser, 
1890, p. 40. 
Bacterium tenuis (duclaux) 
Ty. tenius duclaux, Le Lait, Paris, 1887. 
Ty. scaber duclaux, Le Lait, Paris, 1887. 
B. tenuis trevisan, 1889. 
B. scaber (duclaux) migula, 1900, p. 586. 
B. lactis tenuis conn, esten & stocking, 1906, p. 176. 
Note: We follow Conn who seems to regard Ty. scalier and tenuis as 
identical. 
Bacterium visco-symbioticum (buchanan & hammer) 
B. visco-symbioticum buchanan & hammer, 1915, p. 261. 
Chromobacterium ianthinum (zopf) 
Bacterium ianthinum zopf, 1885, Spaltzpilze, p. 68. 
Bact. ianthinum (zopf). Com. S. A. B. 1920, p. 222. 
B. violaceus mac£:, 1887, Ann. d’Hyg. publ. et de Med. leg. 
XVII. 
B. violaceus frankland, 1889, Zeitsch. f. Hygiene, p. 394. 
B. violaceus-laurentius Jordan, 1890, State Bd. of Health, 
Mass., p. 838. 
B. janthinus zimmerman, 1890, Die Bakt. nnser Trink. und 
Nutzwasser, I. Kuhe, p. 36. 
Ps. ianthina (zopf) mig., 1900, Migula, p. 94. 
Ps. ianthina (zopf) Chester, 1901, Chester, p. 317. 
Bact. violaceum (j. schroter), 1901, Lehmann and Neumann, 
p. 277. 
B. lividus (PLtiGGE and proskauer), 1887, Zeitsch. f. Hygiene 
2: 463. 
B. membranaceus amethystinus eisenberg, 1891, p. 421. 
B. membranaceus amethystinus mobilis germano, 1892, Cen- 
tralb. f. Bakt. 12:516. 
Erythrobacillus aurantiacus (frankland) 
B. aurantiacus frankland, 1894, p. 449. 
Note: Gr. and P. Frankland described but did not name it in an earlier 
communication, Uber einige typische Organism im Wasser und im Boden, 
Zeitsehr. f. Hygiene, Bd. VI., 1889, p. 390, also Frankland, 1894, p. 449. 
