A survey of small mammals in the Volta Region of Ghana with comments on zoogeography and conservation Author Decher, Jan Mammal Section, Zoological Research Museum Alexander Koenig, Adenauerallee 160, 53113 Bonn (Germany) and Department of Biology, University of Vermont. Burlington, Vermont 05405 (USA) j. decher @ leibniz-zfmk. de Author Norris, Ryan W. Department of Evolution, Ecology and Organismal Biology, The Ohio State University at Lima, Lima, OH 45804 (USA) ryanwnorris @ gmail. com ryanwnorris@gmail.com Author Abedi-Lartey, Michael Golden Veroleum (Liberia) Inc., Monrovia Office: Unit 102, Wazni Building, 13 th Street and Tubman Boulevard, Sinkor, Monrovia (Liberia) Author Oppong, James Wildlife Division, Forestry Commission, P. O. Box M 239, Accra (Ghana) Author Hutterer, Rainer Mammal Section, Zoological Research Museum Alexander Koenig, Adenauerallee 160, 53113 Bonn (Germany) Author Weinbrenner, Martin Philosophenweg 12, 77654 Offenburg (Germany) Author Koch, Martin Department of Biogeography, University of Trier, Universitätsring 15, D- 54296 Trier (Germany) Author Podsiadlowski, Lars Mammal Section, Zoological Research Museum Alexander Koenig, Adenauerallee 160, 53113 Bonn (Germany) Author Kilpatrick, C. William Department of Biology, University of Vermont. Burlington, Vermont 05405 (USA) wkilpatr @ uvm. edu wkilpatr@uvm.edu text Zoosystema 2021 2021-05-20 43 14 253 281 journal article 6523 10.5252/zoosystema2021v43a14 b1eb9973-f581-4a60-9c87-68b7ae4b3591 1638-9387 4783781 urn:lsid:zoobank.org:pub:7008A933-FE5E-405E-BBAD-8C06D2A8807D Rhinolophus landeri Martin, 1838 Rhinolophus landeri Martin, 1838: 101 . COMMON NAME. — Lander’s Horseshoe Bat. MATERIAL EXAMINED. — Agumatsa Wildlife Sanctuary • 1♂ ; SMF 89670; 22.XI.1999 . FIG. 11. — Noack’s Roundleaf Bat Hipposideros cf. ruber ( Noack,1893 ) ,♂ from Shiare (SMF 92133). Photo: M. Weinbrenner 2001. FIG. 12. — Cyclops Roundleaf Bat Doryrhina cyclops ( Temminck, 1853 ) ♂ from Shiare (SMF 92134). Photo: M. Weinbrenner 2001. REMARK The single specimen of R. landeri could be distinguished from R. alcyone by its smaller size (weight 7.8 g ; forearm 43.2 mm ). A British Museum specimen of R. landeri is labeled as originating from “Wraura” (BMNH 55.378, leg. A. H. Booth), which may be the same as Worawora (near Apesokubi). A review of the bats of Côte d’Ivoire , showed that R. landeri occurs in all savanna formations to the northern edge of the Sudan savanna and that rainforest is actually being avoided ( Fahr 1996 ; Fahr & Kalko 2011 ), contrary to Rosevear’s (1965) assessment of R. landeri as a rainforest species, which at his time included R. guineensis Eisentraut, 1960 as a subspecies. This is also supported by captures from Togo with just one specimen from the eastern edge of the Ghana-Togo Highlands at Atakpamé ( De Vree et al. 1969 ) and 22 specimens caught in Northern Togo at Namoundjoga ( De Vree et al. 1970 ). On the Accra Plains nine R. landeri were caught in forest remnants and in more open savanna ( Decher 1997a ). CONSERVATION STATUS. — R. landeri is listed as “Least Concern” by IUCN Red List. However, its uncommon occurrence in the Ghana-Togo Highlands and the fact that we found just one specimen in a forested valley make it of some conservation concern for the Volta Region .