GENERAL SYSTEMATIC BACTERIOLOGY 173 



This genus has been considered invalid by Winslow, Rothberg, and Parsons 

 (J. Bact., V. 5, no. 2, 1920, p. 161). The tj-pe species A. pyogenes together with 

 Staphylococcus epidermidis albus (Welch) Gordon, and Albococcus epidermidis 

 the Winslows, becomes Staphylococcus epidermidis. 



If the white pus cocci and related forms are to be grouped together 

 as a genus, the generic name Albococcus Winslow with the type species 

 Albococcus albus (Ros.) would appear to be valid. If they are not 

 sufficiently distinct to warrant generic recognition, they should be grouped 

 with the golden forms in the genus Staphylococcus Rosenbach. 



Alcaligenes. A generic name proposed by Castellani and Chalmers. 

 The first reference is 1919, p. 936. It is here cited, however, as 1918. 

 The diagnosis given is as follows : 



Definition: Ebertheae which do not ferment glucose or lactose, and are char- 

 acterized by their general lack of fermentative power and by actually increasing 

 the alkalinity of the media. Milk is not clotted, and is rendered alkaline. 



Type: Alcaligenes faecalis (Petruschky, 1896), emendavit Castellani and 

 Chalmers, 1918. 



Here also comes Alcaligenes vivax (Archibald, 1918), which was obtained from 

 the blood of a case of enteroidea in the Anglo-Egj'ptian Sudan, produced acidity 

 in galactose and mannitol and was characterized by its marked motility. 



The genus was also later discussed (1920, p. 604) with two species 

 described. 



Bergy et al. (1923, p. 233) included this as the sixth genus of the tribe 

 Bactereae with the description "Motile or non-motile rods, generally 

 occurring in the intestinal canal of normal animals. Do not form 

 acetyl-methyl carbinol. Do not ferment any of the carbohydrates." 



Alkalibacteriaceae. A family of bacteria named by Orla- 

 Jensen (1909, p. 313) belonging to the order Peritrichinae Orla-Jensen. 

 It contains three genera, Liquidobacierium Orla-Jensen, Bacillus Cohn, 

 Urobacillus IMiguel. It includes those bacterial genera characterized by 

 the production of a decided alkaHne reaction in media as a result largely 

 of the development of ammonia. The bacteria are neither obligate 

 anaerobes or microaerophiles. The name of this family does not conform 

 to Article 21 of the botanical code because it is not designated "by the 

 name of one of its genera or ancient generic names wdth the ending 

 aceae. " It would appear therefore not to be tenable. 



Alkaligenes. A variant spelling of Alcaligenes (q.v.). It was used 

 by Castellani and Chalmers (1919, pp. 1405, 1408, 1409) in referring 

 to their genus Alcaligenes described earHer in the same volume. It is 

 also used by Evans (1923, p. 1945). 



