Polydrepanum fissum sp. nov. is quite distinct from other known Polydrepanum spp. as its leg pair I
possesses adenostyle and gonopodal femorite poorly torsate, which all warrant the erection of a new genus for it. However, a distally sickle-shaped solenophore with only lamina lateralis, a flagelliform solenomere enclosed by the lamina lateralis and the seminal groove, which run along the dorsal face of the femorite fit this species into Polydrepanum. The occurrence of adenostyle on leg pair I and gonopodal femorite with less evidence of torsion of P. fissum sp. nov. suggests that it may be a derived clade within Polydrepanum, but confirmation requires phylogenetic treatment.
Sankaran, P. M.; Sebastian, P. A. (2018). A new species of and a new transfer from the millipede genus Polydrepanum Carl, 1932 (Polydesmida, Paradoxosomatidae, Polydrepanini). <em>Zootaxa.</em> 4471(1): 169. Available for editors [request]