14 MANUAL OF DETERMINATIVE BACTERIOLOGY 



mentioned are: Spirobacillus Metschnikoff (Ann. Inst. Past., 3, 1889, 62), 

 Photohacterium Beijerinck, Maanblad voor Natuurwetenschappen Amster- 

 dam, 16, 1889, 1 and Arch. Ne^rl. d. Sci. Exactes, 23, 1889, 401), and 

 Sclerothrix Metschnikoff (Arch. f. Path. Anat. u. Physiol., 113, 1888, 

 63-94; not Sclerothrix Kuetzing, Species Algarum, 1849, 319). 



The above outHne was changed in 1925, p. 235 ff. (Bakterien-Cyclogenie, 

 BerHn, 390 pp.) by the addition of one new family, Chondromycidae, to 

 include the genus Newskia, formerly included in Sphaerotilidae, and nine 

 genera not previously given as follows : Chondromyces, Cystodesmia, Mono- 

 cystia, Ophiocystia, Apelmocoena, Polyangium, Cystoecemia, Myxococcus and 

 Dactylocoena. All except Chondromyces, Polyangium and Myxococcus are 

 taken from Enderlein (Bemerkungen zur Systematik der Chondromyciden, 

 Berlin, 1924, 6 pp.). 



The new genus Lohnisium is added in the Family Eisenhergiinae to in- 

 clude the acetic acid and legume bacteria, and he also proposes the generic 

 term Macrocystita (p. 278) for certain bacteria described by Peklo (0 

 msici krvave (Study of the blood louse). Zemedelskdho Archivu (Agri- 

 cultural Archives), 1, 1916) from aphids. According to Enderlein it is not 

 clear whether this genus should be included in the Family Bacteriidae or in 

 Corynobacteriidae . 



Two genera proposed by others are also accepted. These are Calym- 

 matohacterium Aragao and Vianna (Mem. Inst. Oswaldo Cruz, 6, 1912, 211) 

 placed in the family Migulanidae, and Leuconostoc Van Tieghem placed in 

 the family Micrococcidae. 



Later Enderlein (Sitzber. Gesell. Naturf. Freunde Berlin, 1930, 104-105) 

 accepts Serratia Bizio in place of Dicrohactrum, and Leptotrichia Trevisan in 

 place of Syncrotis. Streptus with Streptus scarlaiinae as type species, is 

 proposed to cover the streptococci not included in Pseudostreptus. 



The outline suggested by Pringsheim (Lotos, 71, 1923, 357) is similar to 

 that used by Lehmann and Neumann (Atlas und Grundriss der Bakterio- 

 logie, 2 vols., 1896, Miinchen). It is a conventional division into spherical, 

 rod-shaped and curved forms so far as the true bacteria are concerned except 

 that the pseudomonads are included in the same family as the vibrios and 

 spirilla. Rhodohacteriales is recognized as an order to include the sulfur 

 purple bacteria and the nonsulfur purple bacteria. Few details are given 

 in regard to the other orders. His outline follows: 



Schizomycetes 



Order I. Eubacteriales 

 Family 1. Coccaceae 



Genus a. Streptococcus 



b. Micrococcus 



c. Sarcina 



