| By far the most important of these is the spirillum or spirochete of Obermeier, which has been already carefully described. |
| For the tick that carries the spirillum is blind and cannot climb any smooth surface. |
| In Spirorbis Pagenstecheri they develop inside the opercular tentacle, and in Spirorbis spirillum inside the tube of the parent. |
| Vibrio spirillum is excessively minute, colourless, and found in decomposing vegetable mixtures. |
| The spirillum of relapsing fever can be identified by the method for the malarial parasite in fresh blood. |
| The term spirillum is used generally for any of the corkscrew-like species. |
