An annotated list of the millipede (Diplopoda) species described by Johann Carl Author Hollier, John Muséum d’histoire naturelle, C. P. 6434, CH- 1211 Genève 6, Switzerland. E-mail: john. hollier @ ville-ge. ch john.hollier@ville-ge.ch Author Stöckli, Eduard Naturhistorisches Museum Basel, Augustinergasse 2, CH- 4051 Basel, Switzerland. E-mail: eduard. stoeckli @ bs. ch eduard.stoeckli@bs.ch Author Wesener, Thomas Zoologisches Forschungsmuseum Alexander Koenig, Leibniz Institute for Animal Biodiversity, Adenauerallee 160, D- 53113 Bonn, Germany. E-mail: T. Wesener @ leibniz-zfmk. de esener@leibniz-zfmk.de Author Mesibov, Robert West Ulverstone, Tasmania, Australia 7315. E-mail: robert. mesibov @ gmail. com robert.mesibov@gmail.com Author Decker, Peter Senckenberg Museum für Naturkunde Görlitz, Department of Soil Zoology, Am Museum 1, D- 02826 Görlitz, Germany. E-mail: peter. decker @ senckenberg. de peter.decker@senckenberg.de Author Sierwald, Petra Field Museum of Natural History, 1400 S. Lake Shore Drive, Chicago, IL 60605, USA. E-mail: psierwald @ fmnh. org psierwald@fmnh.org text Revue suisse de Zoologie 2020 2020-06-04 127 1 183 240 http://dx.doi.org/10.35929/rsz.0015 journal article 10.35929/RSZ.0015 0035-418 5743454 crassipes Carl, 1941b: 595-598 , figs 42-46bis [ Diopsiulus ( Plusiochaeturus ) ]. Nilgiris: Elkhill, 2300 m , Wald, in krümeliger Erde, I.1927 . Two ♂ , one ♀ and an unspecified number of juveniles. The MHNG collection contains 33 specimens in alcohol in three vials. The first vial (MHNG-ARTO-14455) contains two specimens in a smaller vial and labels with “ Diopsiulus IV Elkhill ” and “ Diopsiulus crassipes Carl , type ♂ et cotype ♂ , Elkhill” written on them. The second vial (MHNG-ARTO-14456) contains one specimen and a label with “ Diopsiulus crassipes Carl , ♀ type , Elkhill I.27 ” written on it. The third vial (MHNG-ARTO-14457) contains 30 specimens , several of them broken, and a label with “ Diopsiulus crassipes Carl, Elkhill, Juvs. ” written on it. There are also three microscope slides preparations of parts of syntypes : 1) a slide (MHNG-ARTO-14458) with ♂ legs, gnathochilarium and antenna; 2) slide (MHNG-ARTO-14459) with gonopods and legs of both ♂ ; 3) a slide (MHNG-ARTO-14460) with the second and third legs of the ♀ . Despite the label in the first tube, no holotype designation was made in the original description and all of these specimens are syntypes . Stemmiulus crassipes (Carl, 1941) , Stemmiulidae