20 ' MANUAL OF DETERMINATIVE BACTERIOLOGY 



Family 8. M yxobacteriaceae 

 Genus a. Myxococcus 



b. Polyangium 



c. Chondromyces 



Pribram (Jour. Bact., 18, 1929, 361) has rearranged some groups and 

 combined others (e.g., Rhizohium, Diplococcus, Leuconostoc, Serratia, 

 Flavohacterium, Chromobacterium, Achromohader, Cellulomonas) recognized 

 in the first edition of the Manual with Httle change in the nomenclature 

 except among the anaerobic non-spore-forming rods and among the spore- 

 forming rods. Unfortunately, he has sometimes used family and species 

 names as generic names, thus in the latter case introducing adjectives and 

 adjectival terms as substantives. New generic terms suggested are: 

 Dialisterea, Bacteroidea, Centrosporus, Fusibacillus, Pseudobacillus, Mega- 

 therium, Flexus, Anthrax, Botulinus, Chauvoea, Botidinea, Putrificus, 

 Welchia, Phleobacterium, Distasoa, Tissieria, and Actinoidomyces. Astasia 

 as it appears in this outline does not appear to be the same as Astasia Meyer 

 (Flora, 84, 1897, 185). Aerobacillus is not synonymous with Aerobacillus 

 Donker (Inaug. Diss., Delft, 1926). Sideromonas is accepted from Cho- 

 lodny (Ber. Deutsch. Bot. Ges., 40, 1922, 326). 



Pribram's complete outline follows: 



Class Schizomycetes 



Subclass A. Prolozoobacteria 

 Order I. Spirochaetales 



Family 1. Spirochaetaceae 

 Genus a. Spirochaeta 



b. Treponema 



c. Spironema 

 Family 2. Crisiispiraceae 



Genus a. Saprospira 

 h. Cristispira 

 c. Leptospira 

 Subclass B. Eubacleria 

 Order I. Protobacteriales 



Family 1. Nitrobacteriaceae 

 Related to Pseudomonas 

 Tribe A. H ydrogenomonadae 

 Genus a. H ydrogenomonas 



b. M ethanomonas 



c. Carboxyodomonas 

 Tribe B. Niirobactereae 



Genus a. Niirosomonas 

 h . Nitrobacter 

 Family 2. Thiobacillaceae 

 Tribe A. Thiobacilleae 

 Genus a. Thiobacillus 



