<prompt> All are capsulated bacteria except -NeisseriaCorynebacterium diphtheriaeHaemophillusStreptococcus saliverius  <response>: The diphtheria bacillus are pleomorphic, nonsporing noncapsulated and nonmotile they are gram-positive .pleomorphic, nonspoing, encapsulated, nonmotile gram-positive bacteria REF:Ananthanarayan and Panikkars textbook of microbiology 9th edition pg no 236 