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 inconstans Carl, 1914b: 869-871 , figs 88-91 [ Spirostreptus ( Nanostreptus ) ]. La Camelia, Kaffeepflanzung bei Angelopolis 1800 m . Unspecified number of ♂ and ♀ . The MHNG collection contains six specimens in alcohol (MHNG-ARTO-18477). Two of the specimens have a pin running all or part of the length of the body, and they are accompanied by a vial containing gonopods. The identification labels in the jar have “Camelia ( Colombie ) 1800 m . Coll. Fuhrm. ” and “Camelia ( Colombie ) Coll. Fuhrmann ” written on them respectively, indicating that the specimens are syntypes . There are two syntypes ( one ♂ and one ♀ referred to as “Co-Typus” in the NMB catalogue) in the NMB (inventory number NMB-DIPL- 00216a). Hyloecostreptus inconstans (Carl, 1914) , Spirostreptidae