Chi.ti.ni.spi.ril’li.a. N.L. fem. pl. n. Chitinispirillales, a bacterial order; -ia, suffix used to designate a class; N.L. neut. pl. n. Chitinispirillia the class of the order Chitinispirillales. The class Chitinispirillia is a member of the phylum Fibrobacterota. It includes a single moderately salt-tolerant and alkaliphilic cultured isolate from soda lakes which is a fermentative anaerobe specialized on chitin as the only growth substrate.