SECTION II. 



SYSTEMATIC DESCRIPTION OF SPECIES. 



The various spirochaetes will be considered here in the 

 following order : 



LARGE FORMS. 



Spirochaeta plicatilis. 



Sp. balbianii. 



Sp. anodontae and other spirochaetes in shell-fish. 



Sp. polyspira. 



SMALL FORMS. 



(Spirilla?) 

 Sp. obermeieri. 



Sp. duttoni and other species in relapsing fever. 

 Sp. pitheci. 

 Sp. anserina. 

 Sp. gallinarum. 

 Sp. lagopodis. Sp. lovati. 

 Sp. vesperuginis. 

 Sp. lutrae. 



Sp. theileri and allied forms. 

 Sp. suis. 

 Sp. laverani, Sp. muris, Sp. minor, Spirochaetes in 



mouse-cancer. 

 Sp. gondii. 



Sp. culicis, Sp. minei. 

 Sp. gadi, Sp. pelamydis, Sp. jonesii. 

 Sp. hartmanni. 

 Sp. bufonis. 



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