4O Synopsis of the Bacteria and Yeast Fungi. 



57. B. minima, Warming (I.e., Resume", p. 15). 



Very minute, actively motile and flexile. The longest 

 specimens about 40 p. long, i '8-2 

 p. thick; articulations discernible 

 in the form of delicate transverse 

 bars. Each joint about half as 

 long as broad. Without granules. 

 (Fig- 34-) 



Fig. 34. Beggiatoa minima, X 

 660 (after Warming). 



In sea-water. 



X. CLADOTHRIX, Cohn (" Beitrage," i. p. 204). 



Threads like those of Leptothrix, very slender, colour- 

 less, not articulated, straight or slightly undulated, or even 

 in places twisted in irregular spirals, with false branching. 



I can discover no sufficient distinction between Clado- 

 thrix and 1 Streptothrix. Both are very doubtful genera. 



Fig. 3S- a, Cladothrix dichotoma, X 100 ; b, a part of the same, showing 

 the false dichotomy, X 600 (after Cohn). 



