Narceus americanus (Palisot de Beauvois, 1817)

John Hollier, Edmund Schiller & Nesrine Akkari, 2017, An annotated list of the Diplopoda described by Aloïs Humbert alone and with Henri de Saussure, and the Diplopoda from Saussure’s Mexico expedition, Revue suisse de Zoologie 124 (2), pp. 203-224 : 221

woodi Humbert & Saussure, 1870: 177 [ Spirostreptus ].

America borealis, Saint-Louis. Unspecified number of ♂.

Saussure & Humbert (1872) gave a more detailed redescription. No specimens found in the MHNG. There are two specimens in the NHMW. One, a dissected ♂ in alcohol with the gonopods in a vial (Inventory number 2069, Acquisition number 1866.I.52), has the entry in the Acquisition Register “ Spirobol. Woodi HBS. (Hekl) Amerika/St. Louis 1 [specimen].” The other ♂, also identified by Humbert and Saussure, has a separate entry (Inventory number 2170, Acquisition number 1866.I.82) and has the locality data “America borealis”. It is not clear whether the specimens are syntypes (interpreting “America borealis” and “St Louis” as the localities of the two specimens) or whether the first is the holotype. Hoffman (1999: 36) considered that the original placement of this species as a member of the genus Spirostreptus rather than Spirobolus was probably a lapsus calami, an inference supported by the Acquisition Register entry.

A junior synonym of Narceus americanus (Palisot de Beauvois, 1817)