Pachybolus Cook, 1897

Enghoff, Henrik, 2011, East African giant millipedes of the tribe Pachybolini (Diplopoda, Spirobolida, Pachybolidae), Zootaxa 2753, pp. 1-41 : 28

Genus Pachybolus Cook, 1897

Type species: Pachybolus tectus Cook, 1897 .

Included species. Pachybolus tectus Cook, 1897 .

Diagnosis. A genus of East African Pachybolini characterized by

- no moveable appendix, no striated membranous lamellae, no mesal process, no free solenomerite, no distal complex of parallel ridges on posterior gonopod

- no long meso-distal process on anterior gonopod coxite

- no distinct overlapping lobes on anterior gonopod telopodites

(chartacters of vulvae and male legs unknown)

Note. A number of species in addition to the type species have been assigned to Pachybolus . Most of these are now classified in the West African genus Pelmatojulus de Saussure, 1860 (see Wesener et al., 2008). In the present paper, I transfer Trigoniulus dimorphus Carl, 1909 —reallocated to Pachybolus by Hoffman (1965)—to the new genus Parabolus , and Pachybolus morogoroensis Kraus, 1958 , to the new genus Hyperbolus . Pachybolus is thereby rendered monotypic.

Pachybolus in this restricted sense remains known only from the original description of its type species. The diagnostic number of setae on the lamellae linguales is unknown, and Pachybolus is assigned to the group of genera here referred to as East African Pachybolini on purely geographical grounds.