An annotated list of the Diplopoda described by Aloïs Humbert alone and with Henri de Saussure, and the Diplopoda from Saussure’s Mexico expedition Author John Hollier Author Edmund Schiller Author Nesrine Akkari text Revue suisse de Zoologie 2017 2017-09-30 124 2 203 224 journal article 31808 10.5281/zenodo.893503 c0dc4be8-6e76-47ef-989d-ee77833bfc09 893503 californicus Humbert & Saussure, 1870 : 177 [ Spirostreptus ]. California. Unspecified number of ♂. Saussure & Humbert (1872) gave a more detailed redescription, implying that they only had one specimen. No specimens found in the MHNG. There is a ♂ type specimen, collected in California by Parreyss, in the NHMW (Inventory number 2168, Acquisition number 1866.I.43). The Acquisition Register shows that the lot contained only one specimen, so this can be considered the holotype. Hoffman (1999: 36) considered that the placement of this species as a member of the genus Spirostreptus rather than Spirobolus in the original description was probably a lapsus calami . A junior synonym of Tylobolus uncigerus (Wood, 1864) (photo P. Schwendinger).