Adults of E. jiangxiensis n. sp. are distinct from other Epanerchodus species by the presence of 4–5 and 5–6 lateral incisions/denticles at the lateral margin on the poreless and pore-bearing paraterga, respectively vs. 3–4 in all other continental Chinese Epanerchodus.
Several polydesmid species from Japan (mainly in caves in Kyushu and Shikoku) that formerly composed the genus Prionomatis Miyosi, 1956 are known to show abundant lateral incisions on the paraterga (> 4) and densely setose metaterga. Based to gonopodal structure alone, Prionomatis has since been synonymized with Epanerchodus (Golovatch 1991). The new species differs readily from any of the ex-Prionomatis by lacking tergal setae and in the gonopod featuring an unusually prominent hairy pulvillus