Obligatory anaerobes, all except-
a. Eikenella corrodens is not an obligatory anaerobe.
b. It has been classified amongst the HACEK group of bacteria, which are gram negative bacteria that can be normal commensals in the oral cavity and can cause culture-negative endocarditis (as they are slow-growers), especially after dental manipulations.
c. They are capnophilic, fastidious organisms that grow on BA and not on MacConkey.