According to the 1986 Ed. of the Bergey's Manual, the strain could be
Citrobacter diversus or Citrobacter amalonaticus. You can differentiate
between this two strains with some more tests like: adonitol, d-arabitol,
KCN, malonate.
Best whishes,
Ivano de Filippis
ivano at dinco.incqs.fiocruz.br
