42 Synopsis of the Bacteria and Yeast Fungi. 



variously bent and intertwined, surrounded hy gelatine, 

 which forms 'spheroidal masses of 10-17 fi (or more) in 

 diameter. Multiplication by constriction and bipartition 

 of these gelatinous masses. 



60. M. gregarium, Cohn (I.e.). 



Gelatinous masses floating on the surface of putrid 

 water, singly or heaped into little slimy drops ; exterior 

 boundary sharply defined. (Fig. 37.) 



On water in which Algse were decaying. 



Fig. 37. — Myconostoc gregarium. a, gelatinous spheroids, 

 containing the threads ; 3, a spheroid in the act of 

 division ; c, the threads separated ; d, the threads break- 

 ing up into ring-shaped pieces (after Cohn). 



[This species was recorded by Professor Lankester as a phase of 

 Spirillum Undula {Quart. Jour. Micr. Sci., xiii. 424), but as no genetic 

 connection between the two has yet been traced, Cohn thinks it better, 

 at present, to keep it distinct. It derives its name from its resemblance 

 to Nostoc among the Alg^. (Fig. 38.) — Tr.] 



Fig. -^.—Myconostoc gregarium^ X 1500 (after Lankester, 

 who considers it a zooglcea form of Spirillum Undula). 



