GENERAL SYSTEMATIC BACTERIOLOGY 171 



Algarum 5, 684, 1907). It is placed questionably among the bacteria 

 by De Toni and Trevisan (1889, p. 938) with the following description: 



Filamenta cylindrica, articulata, simplicia, basi ab apicc superiore distincta, 

 e puncto central! commune radiatim exorientia, caespites formantia. Sporae 

 (endosporae) maximae, ovales, singulae in unoquoque articulo obvientes. 



The only species (type) is Agonium centrale Oersted. 



It is doubtful whether this genus should be included with the 

 bacteria. 



Aktinomyces. A German variant in the spelling of the generic 

 name Actinomyces, q.v. Apparently the first record of its use is by 

 Johne (1881, p. 143). It is probably invalid. 



Albococcus. A genus of cocci proposed by Winslow and Rogers 

 (1906, p. 541) with Micrococcus pyogenes (Ros.) Mig. as the type. 

 The characteristics of the genus are given as follows : 



Parasites. Cells in groups and short chains (never in packets). Generally 

 stain by Gram. Growth on agar streak abundant and porcelain white in color. 

 Sugars fermented with production of slight amount of acid. Gelatin lique- 

 faction and nitrate reduction may or may not occur. 



Four species are noted. Albococcus pyogenes (Ros.) W. and R., 

 A. rhenanus (Mig.) W. and R., A. candicans (Flugge) W. and R. and 

 A. canescens (Mig.) W. and R. 



Later the Winslows (1908, p. 192) revised their list of species, giving 

 Albococcus pyogenes (Rosenbach) Winslow, Alb. epidermidis (Gor- 

 don) Winslow, Alb. candidus (Cohn) Winslow, and Alb. tetragenus 

 (Gaffky) Winslow. 



Khgler (1913, p. 432) has added one species, Alb. ureae (Cohn, Flugge) 

 Kligler. 



The genus Albococcus is one of the genera included by the Winslows 

 in the subfamily Paracoccaceae (g.v.) 



To organisms of this group the generic name Micrococcus (q.v.) 

 was given by Cohn. The forms occurring in irregular masses or grape 

 like clusters, particularly those occurring in pus, were named Staphy- 

 lococcus {q.v.) by Rosenbach (1884, p. 19). The species described 

 were the golden and the white pus cocci, or Staphylococcus pyogenes 

 aureus and Staphylococcus pyogenes albus. On a later page, in a main 

 heading, the phrase "Staphylococcus aureus (mit oder ohne albu^)" 

 is used. The trinomial forms of the names first given would probably 

 bar the use of the generic designation Staphylococcus unless a species 



