Rhinolophus kahuzi, Fahr & Kerbis Peterhans

Burgin, Connor, 2019, Rhinolophidae, Handbook of the Mammals of the World – Volume 9 Bats, Barcelona: Lynx Edicions, pp. 280-332 : 299

38 . Kahuzi Horseshoe Bat

Rhinolophus kahuzi

French: Rhinolophe du Kahuzi / German: Kahuzi-Hufeisennase / Spanish: Herradura de Kahuzi

Taxonomy. Rhinolophus kahuzi Fahr & Kerbis Peterhans in Kerbis Peterhans et al, 2013,

“ Western slope of Mt Kahuzi, Kahuzi-Biéga National Park, South Kivu Province, eastern Democratic Republic of the Congo, 2°15’09”S, 28°40’09”E, 2600 m. ”

Rhinolophus kahuzi is in the maclaudi species group. Monotypic.

Distribution. Known only from Mt Kahuzi, Kahuzi-Biéga National Park, E DR Congo.

Descriptive notes. Head-body 57 mm, tail 24- 1 mm, ear 34- 5 mm, hindfoot 12* 3 mm, forearm 54- 5 mm; weight 13 g (type specimen). Dorsal pelage is dark smoky brown; venter is barely paler but more grayish with slight sheen. There is no known orange morph. Males lack axillary tufts. Ears are very large (c.63% of forearm length), with eleven internal folds. Noseleaf has subtriangular lancet; connecting process is low; sella is covered in short hairs, upright, and about parallel to lancet, having concave sides and distinctly broadened and rounded spoon-shaped top (narrower at base than in Hill’s Horseshoe Bat, R hilli )', narial lobes at base of sella are very enlarged, forming nearly circular cup; nostrils are bordered by semicircular raised rims that are parallel to inner cup; and horseshoe is of medium width at 10- 3- 124 mm, covers muzzle, and has lateral leaflets and conspicuous median emargination. Wings and uropatagium are dark smoky brown. Skull is large, with relatively short rostral part; sagittal crest is moderately developed along anterior one-half of braincase; and infraorbital bridge is short and very stout. P2 is very small and slightly displaced labially, stopping C1 and P4 from touching.

Habitat. Mixed Afrocarpus (Podocarpaceae) and Nuxia (Stilbaceae) forest on slopes of Mount Kahuzi at an elevation of c. 2600 m (holotype).

Food and Feeding. No information.

Breeding. No information.

Activity patterns. No information.

Movements, Home range and Social organization. No information.

Status and Conservation. Not assessed on The IUCNRed List. Virtually nothing is known about the Kahuzi Horseshoe Bat because it was newly recognized in 2007 from a single specimen collected in Kahuzi-Biéga National Park . Additional research is needed to assess its ecology and conservation status.

Bibliography. ACR (2018), Kerbis Peterhans et al. (2013).

Figures

On following pages: 27. African Forest Horseshoe Bat (Rhinolophus silvestris); 28. Upland Horseshoe Bat (Rhinolophus hillorum); 29. Sakeji Horseshoe Bat (Rhinolophus sakejiensis); 30. Bokhara Horseshoe Bat (Rhinolophus bocharicus); 31. Greater Horseshoe Bat (Rhinolophus ferrumequinum); 32. Geoffrey's Horseshoe Bat (Rhinolophus clivosus); 33. Greater Japanese Horseshoe Bat (Rhinolophus nippon); 34. Horacek's Horseshoe Bat (Rhinolophus horaceki); 35. Maclaud's Horseshoe Bat (Rhinolophus maclaudi); 36. Ziama Horseshoe Bat (Rhinolophus ziama); 37. Hill's Horseshoe Bat (Rhinolophus hilli); 38. Kahuzi Horseshoe Bat (Rhinolophus kahuzi); 39. Willard's Horseshoe Bat (Rhinolophus willardi); 40. Ruwenzori Horseshoe Bat (Rhinolophus ruwenzorii); 41. Chinese Horseshoe Bat (Rhinolophus xinanzhongguoensis); 42. Big-eared Horseshoe Bat (Rhinolophus macrotis); 43. Osgood's Horseshoe Bat (Rhinolophus osgoodi); 44. Allen's Horseshoe Bat (Rhinolophus episcopus); 45. Thai Horseshoe Bat (Rhinolophus siamensis); 46, Schnitzler's Horseshoe Bat (Rhinolophus schnitzten); M. King Horseshoe Bat (Rhinolophus rex); 48. Marshall’s Horseshoe Bat (Rhinolophus marshalli).

Distribution. Known only from Mt Kahuzi, Kahuzi-Biéga National Park, E DR Congo .