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 ducalis Carl, 1926: 452-455 , figs 140-142 [ Rhinotus ]. Neu-Caledonien: Coulé-Boréaré, 6. Febr. 1912; Tchalabel, unter Kalkblöcken, 5. Mai 1911 ; Yaté, 23. März 1912; Mt. Canala, 700 m , Sept. 1911 ; Mt. Ignambi, April 1911 . Loyalty-Inseln: Maré, Nétché, Dez. 1911 . Unspecified number of ♂ and ♀ . The MHNG collection contains five specimens in alcohol (MHNG-ARTO-14343). The identification labels in the jar both have “Ignambi, N. Caled. Sarasin & Roux” written on them, indicating that the specimens are syntypes . There are nine syntypes ( ♂ , ♀ and juveniles referred to as “ Typen ” in the NMB catalogue) in the NMB (inventory numbers NMB-DIPL-00382a to NMB- DIPL-00382f). Rhinotus ducalis Carl, 1926 , Siphonotidae