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 ambiguus Carl, 1914b: 941 , fig. 204 [ Aphelidesmus ]. Cafetal Buenavista bei Viota. Coll. Fuhrmann. One ♂ . No specimens found in the MHNG collection. The whereabouts of the holotype is unknown. Aphelidesmus ambiguus Carl, 1914 , Aphelidesmidae ambiguus Carl, 1926: 424-246 , figs 83-86 [ Spirobolellus ]. Neu-Caledonien: Tchalabel, unter Kalkblöcken, 5. Mai 1911 ; Oubatche, Wald, unter faulem Holz, April 1911 ; Mt. Ignambi, Wald, April 1911 , 800- 1000 m ; Hienghène; Insel Ouedjo bei Hienghène, Juni 1911 ; Canala, März 1912; Bourail, 26. Jan. 1912 ; La Foa, 16. Jan. 1912 . Unspecified number of ♂ and ♀ . The MHNG collection contains five specimens in two jars. The first jar (MHNG-ARTO-14328) contains four specimens , one with a pin running the length of the body, and a vial containing gonopods. The identification label has “Drs F. Sarasin & J. Roux, N. Caled. Bourail 2.II.12 ” written on it, and the specimens are presumably syntypes despite the collecting date not corresponding to that in the original description. The second jar (MHNG- ARTO-14329) contains a specimen collected in 1977 which is clearly not part of the type series. There are 12 syntypes (referred to as “ Typen ” in the NMB catalogue) in the NMB (inventory numbers NMB-DIPL-00363a to NMB-DIPL-00363g). Spirobolellus ambiguus Carl, 1926 , Spirobolellidae