Bat diversity in the Simandou Mountain Range of Guinea, with the description of a new white-winged vespertilionid Author Decher, Jan Zoologisches Forschungsmuseum Alexander Koenig, Leibniz Institute for Animal Biodiversity, Adenauerallee 160, 53113 Bonn, Germany & Corresponding author: E-mail: J. Decher @ zfmk. de echer@zfmk.de Author Hoffmann, Anke Museum für Naturkunde, Leibniz Institute for Evolution and Biodiversity Science, Invalidenstr. 43, 10115 Berlin, Germany Author Schaer, Juliane Museum für Naturkunde, Leibniz Institute for Evolution and Biodiversity Science, Invalidenstr. 43, 10115 Berlin, Germany & Max Planck Institute for Infection Biology, Chariteplatz 1, 10117 Berlin, Germany Author N Orris, Ryan W. Department of Evolution, Ecology and Organismal Biology, Ohio State University, 4240 Campus Dr., Lima, OH 45804, USA Author Kadjo, Blaise Université Félix Houphouët-Boigny, 22 BP 582 Abidjan 22, Côte d’Ivoire Author Astrin, Jonas Zoologisches Forschungsmuseum Alexander Koenig, Leibniz Institute for Animal Biodiversity, Adenauerallee 160, 53113 Bonn, Germany Author Monadjem, Ara All Out Africa Research Unit, Department of Biological Sciences, University of Swaziland, Private Bag 4, Kwaluseni, Swaziland & Mammal Research Institute, Department of Zoology & Entomology, University of Pretoria, Private Bag 20, Hatfield 0028, Pretoria, South Africa Author Hutterer, Rainer Zoologisches Forschungsmuseum Alexander Koenig, Leibniz Institute for Animal Biodiversity, Adenauerallee 160, 53113 Bonn, Germany text Acta Chiropterologica 2015 2015-12-01 17 2 255 282 journal article 10.3161/15081109ACC2015.17.2.003 470b137b-05b5-468a-b37e-6a315108ecc1 1733-5329 3943621 Eidolon helvum (Kerr, 1792) A single female of this large gregarious fruit bat species was captured on 17 March 2008 on the ridge at the end of the road to Pic de Foko (PF) high in the canopy net. During the 2002 RAP two individuals were recorded in similar habitat ( W2, 1350 m). Eidolon helvum is already known from the Guinean side of Mount Nimba ( Aellen, 1963 ). Verschuren (1976) and Wolton et al. (1982) captured single E. helvum on the Liberian side of Nimba in September and February, respectively. Eidolon helvum has been shown to be a migrant from its prime habitat, forest belt of West Africa, to areas reaching into the Sahel belt ( Thomas, 1983 ). These migratory movements of E. helvum have recently been studied in more detail ( Ossa et al. , 2012 ; Sapir et al. , 2014 ). Conservation status Near Threatened. Population trend is decreasing. According to IUCN E. helvum “...is being seriously over-harvested for food and medicine, making the species close to qualifying for Vulnerable.” ( IUCN, 2015 ).