Keeled Millipede Antichiropus anguinus Car, 2019

(after Car et al. 2019): Antichiropus anguinus is most similar to A. procerus. Both species have upright gonopodal femorites that are more than half the length of the acropodites, and broad, flattened solenomere tips. Antichiropus anguinus has, however, three solenomere processes, one of which (solenomere process 2) has a distinctive, broad, saw-like structure, whereas A. procerus has two processes. Antichiropus anguinus has a narrow pointed prolongation of the femorite (medial view); the same structure in A. procerus is long, relatively broad and extends above the curve of the solenomere. Finally, A. anguinus has a blunt solenomere tip whereas that of A. procerus is leaf-shaped.

A molecular analysis places A. anguineus phylogenetically close to Antichiropus FP-11174 (only known from juveniles), and it can't be excluded that both represent the same species.

• Western Australia