SURVEY OF CLASSIFICATIONS OF BACTERIA 11 



Orla-Jensen (Jour. Bact., 6, 1921, 263), in a paper published after the 

 manuscript of the first edition of the Manual was prepared, suggested the 

 use of Colibacterium and Aerogeneshacterium for the two genera in the 

 coliform group and adds quite a number of other new terms formed in 

 accordance with his system of nomenclature. These are, in most cases, 

 synonjTns of earlier valid names. The new terms are Coccomonas, Spiro- 

 monas (used in a new, different sense from that of earlier authors), Fluoro- 

 monas, Photomonas, Propionicoccus, Buty rich sir idium and Putriclostridium. 



Many new terms are proposed in the classification drawn up by Heller 

 (Jour. Bact., 6, 1921, 521; and 7, 1922, 1). Details are given in the group 

 of anaerobic spore-formers onlj*. Here each of the new generic terms is 

 based on a single species. The following outline is given in the first of these 

 papers, two new genera {Rivoltillus and Metchnikovillus) being made the 

 type genera for two new subfamilies Clostridioideae and Putrificoideae, 

 respectively. 



Phylum I. Bacteria 



Class I. Eubacterieae 



Order 1. Eubacieriales 



Family C (?). Clostridiaceae 



Subfamily 1. Clostridioideae 

 Subfamily 2. Putrificoideae 

 Order 2. Thiobacteriales 

 Order 3. Chlamydohacteriales 

 Class II. Myxohacterieae 



In the more complete outline in the second paper, one generic term 

 (Clostridium) is old, although it is used in a new and restricted sense, while 

 with the exception of the type genera mentioned above, the other terms 

 are new. In the subfamily Clostridioideae, the new terms are Omelianskillus, 

 Macintoshillus, Douglasillus, Henrilliis, Flemingillus, Vallorillus, Multi- 

 fermentans, Hihlerillus, Welchillus, Stoddardillus, Arloingillus, Meyerillus 

 and Novillus. Ten new generic terms are used in the subfamily Putrifi- 

 coideae as follows: Sequinillus, Reglillus, Rohertsonillus, Nicollaierillus, 

 Martellillus, Recordillus, Tissierillus, Putrificus, Ermengemillus, and Wein- 

 bergillus. As there does not seem to be any good reason for sub-dividing 

 the genus Clostridium in this way, the latter term has been used to cover 

 anaerobic spore-forming rods in all previous editions of the Manual, and is 

 again used in the present edition in this sense rather than with the restricted 

 meaning proposed bj^ Heller. 



Enderlein (Sitzber. Gesell. Naturf . Freunde, Berlin, 1917, 309) proposed 

 an outline classification covering the Kingdom of Mychota, or bacteria, 

 which was based on comparative morphology with special emphasis on life 

 cycles. This was as follows: 



