42 CLASSIFICATION OF BACTERIA. 
I. Subfamily THrocapsacr#, cells divide in 
three planes. 
Genus: 
1. Thiocystis. 
2. Thiocapsa. 
3. Thiosarcina. 
II. Subfamily LAMPROCYSTACEA, cells divide 
first in three, then in two planes. 
Genus : 
1. Lamprocystis. 
III. Subfamily TH1opEprace&, cells divide in 
two planes. 
Genus: 
1. Thiopedia. 
IV. Subfamily AMEBOBACTERIACEA, cells divide 
in one plane. 
Genus : 
1. Amebabacter. 
2. Thiothece. 
3. Thiodictyon. 
4. Thiopolycoccus. 
V. Subfamily CHROMATIACEA. 
Genus: 
1. Chromatium. 
2. Rhabdochromatium. 
3. Thiospirillum. 
