neisseria mucosa neisseria mucosa neisseria mucosa is a species of neisseria. neisseria mucosa scientific classification domain: bacteria phylum: pseudomonadota class: betaproteobacteria order: neisseriales family: neisseriaceae genus: neisseria species: n. mucosa binomial name neisseria mucosaveron et al. 1959 it is notable among neisseria for its ability to metabolize sucrose. it can cause endocarditis. while n. mucosa is a rather rare cause of endocarditis, cases of n. mucosa endocarditis have been reported along with symptoms such as painful finger nodules, fever, headache, and tremors. in certain cases, patients can become terminal from this strain of the infection but for those that survive, treatment of n. mucosa endocarditis usually takes around 6 weeks.