96 
MORPHOLOGY OF THE BACTERIA. 
M. Warming has recently described three new species 
found upon the coast of Denmark : — 
Sp. violaceum, height 8 to 10 p, diameter 1 to 1.5 p, thick- 
ness 3 to 4 uw; a cilium at each extremity. 
Sp. Rosenbergti, height of helix 6 to 7.5 p, thickness 1.5 to 
2.6 pe. 
Sp. attenuatum, body very attenuated at the two extrem- 
ities, without a cilium. 
We give below some details concerning the 
other colorless Schizophytes : — 
. Sarcina, Goods. 
The Sarcina, which it is useless to describe 
here, can be considered as bacteria in which 
the division occurs by two perpendicular par- 
titions in such a manner that multiplication 
takes place in two directions. 
Sarcina is very nearly allied to Merismopedia, 
from which it only differs by the absence of 
chlorophyll; its siliceous skeleton allies it with 
the diatoms. 
. Ascococcus, Billr. 
Cells hyaline, small, globular, closely united in 
globular or oval families, irregularly lobed and lobu- 
lated, surrounded by a thick gelatinous envelope, 
cartilaginous, forming a soft membrane, flaky, easily 
separating. 
Billrothi, Cohn. 
Families in masses of 20 to 160 p, surrounded by a thick 
membrane of 195 yp. 
In a solution of tartaric acid exposed to the air. 
. Myconostoc, Cohn. 
Filaments very slender, colorless, folded, rolled up 
in a mucous substance, united in very small globules. 
