From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types Author Breure, Abraham S. H. Royal Belgian Institute of Natural Sciences, Vautierstraat 29, 1000 Brussels, Belgium. & Naturalis Biodiversity Center, P. O. Box 9517, 2300 RA Leiden, the Netherlands. Author Tardy, Emmanuel Department of Invertebrates, Muséum d’histoire naturelle, CP 6434, CH- 1211 Genève, Switzerland. text Revue suisse de Zoologie 2016 123 1 113 138 journal article 203549 10.5281/zenodo.46292 59e37f50-05dc-43e2-9954-f33875cbb0c6 0035-418 46292 costulata , Unio ( Monocondylea ), J. Moricand, 1858: 453 , pl. 15 fig. 1. Type locality: Brésil . Syntypes : MHNG-INVE-91234 ( 1 ) ( Unionidae ) [ Figs 50-53 ]. – Remarks. Moricand junior wrote “j’en ai reçu seulement deux individus”, which is interpreted as two doublets. Only one specimen (doublet), however, could be found in the collection. The specimen was labelled as having been revised by Haas in 1930.