<prompt> All are motile except?CI. histolyticumCI. TetanosporumCI. perfringensCI. septicum  <response>: It is a pump Gram-positive bacillus was straight parallel sides and rounded or truncated ends about 4-6 x1 um in size usually occurring singly or in chains or small bundles. It is pleomorphic and filamentous and involution forms are common it is capsulated and nonmotile Ref: Ananthanarayan panikers Textbook of Microbiology 9th edition pg no 253 