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 plataleus granosus Carl, 1902: 602-604 , pl. 10, fig. 34 [ Leptodesmus ]. St. José (Costarica), P. Biolley (Genfer Museum). Unspecified number of ♂ and ♀ . The MHNG collection contains six specimens in alcohol (MHNG-ARTO-18539). Two of the specimens are separated into a vial, one has a pin running the length of the boy and the other is broken. Three of the specimens loose in the jar are also broken. The identification labels in the jar use the orthography “Plataleus granulosus Carl.” They have “St José (Costarica) P. Biolley” and “Costarica P. Biolley” written on them respectively, indicating that the specimens are syntypes . Chondrodesmus granosus ( Carl, 1902 ) , Chelodesmidae