Rhinolophus convexus Csorba 1997

71. Convex Horseshoe Bat Rhinolophus convexus French: Rhinolophe convexe / German: Cameron-Highlands-Hufeisennase / Spanish: Herradura convexo Taxonomy. Rhinolophus convexus Csorba, 1997, “ Gunung Jasar, Tanah Rata, Cameron Highlands, Pahang State, Malaysia (4°28’N, 101°22’E), 1,600 m elevation.” Rhinolophus convexus is included in the pusillus species group, although its relationship to other Rhinolophus species is still unclear. Monotypic. Distribution. Peninsular Malaysia (Selangor and Pahang states) and possibly N Laos, although identity of Laotian specimens is uncertain. Descriptive notes. Tail 18-22 mm, ear 15-16 mm, forearm 42-43 mm; weight 7-2-8- 2 g. Dorsal pelage is rich russet-brown, ventral pelage is paler. Ears are small. Noseleaf has short, parallel-sided lancet with blunt, broadly rounded tip and convex lateral margins; connecting process is long and slender with concave anterior margin in lateral view, continuously sloping toward the base of sella, being hook-shaped; sella gradually narrows toward tip, which curves downward; horseshoe does not cover muzzle (c.7- 5 mm wide), has shallow median emargination, and has lateral leaflets. Skull is ofmoderate build (zygomatic width is slightly greater than mastoid width); anterior median swellings are low and slightly shorter than they are wide; posterior swellings are moderately developed; sagittal crest is low but conspicuous; frontal depression is shallow; supraorbital ridges are sharp. C1 is relatively slender; P2 is medium-sized and in line with tooth row; P3 is small and extruded from tooth row, although P and P4 are separated by conspicuous gap. Habitat. Upper montane forest in Peninsula Malaysia, at c. 1600 m. Food and Feeding. No information. Breeding. The holotype was a pregnant female collected in late March. Activity patterns. Call shape in Laos (identity of this population is uncertain) is FM/ CF/FM with a peak F recorded at 92 kHz. Movements, Home range and Social organization. No information. Status and Conservation. Classified as Data Deficient on The IUCN ed List. The Convex Horseshoe Bat is known with certainty only by the holotype; it appears to have a very restricted distribution. Virtually nothing is known of the species’ ecology; further studies are needed. Bibliography. Csorba (1997), Csorba, Bumrungsri, rancis, Görföl & Bates. (2016), Csorba, Ujhelyi & Thomas (2003), rancis (2008 a), Thomas et at. (2013).Published as part of Burgin, Connor, 2019, Rhinolophidae, pp. 280-332 in Handbook of the Mammals of the World – Volume 9 Bats, Barcelona :Lynx Edicions on page 314, DOI: 10.5281/zenodo.374852