Cephalophus hypoxanthus (Grubb & Grovers, 2011)

Don E. Wilson & Russell A. Mittermeier, 2011, Bovidae, Handbook of the Mammals of the World – Volume 2 Hoofed Mammals, Barcelona: Lynx Edicions, pp. 444-779 : 731

265.

Itombwe Duiker

Cephalophus hypoxanthus

French: Céphalophe de I'ltombwe / German: [tombwe-Schwarzstirnducker / Spanish: Duiker del [tombue

Taxonomy. Cephalophus nigrifrons hypoxanthus Grubb & Groves, 2001 ,

Mianga, Itombwe Mts., DR Congo.

Recently named as a subspecies of C. nigrifrons ; itis treated here as a distinct species. Monotypic.

Distribution. Itombwe Mountains in DR Congo, W of Lake Tanganyika.

Descriptive notes. No specific measurements available, but likely similar to the Black-fronted Duiker (C. mnigrifrons): head-body ¢.85-95 cm, tail c.11-15 cm; weight c.13-16 kg. Overall color is a pale yellowish-chestnut, distinctly paler than the Black-fronted Duiker. Hair is long and relatively soft; the hair bases are pale gray. There is no mid-dorsal stripe, but the hair bases darken in this region. The limbs are only slightly darker than the body, with faint gray-brown shading below the elbow on the forelimbs; the shading is only barely visible on the shanks of the hindlimbs. Some individuals also show faint darkening on the shoulders. The chin is white. Horns are presumably present in both males and females. Dental formulais10/3,C0/1,P 3/3, M 3/3 (x2) = 32.

Habitat. Montane forest.

Food and Feeding. There is no specific information available for this species, but presumably frugivorous/folivorous like the Black-fronted Duiker.

Breeding. There is no information available for this species.

Activity patterns. There is no specific information available for this species, but likely diurnal like the Black-fronted Duiker.

Movements, Home range and Social organization. There is no specific information available for this species, but presumably solitary.

Status and Conservation. Classified as Least Concern on The IUCN Red List (under C. nigrifrons ). No other information is available.

Bibliography. Grubb & Groves (2001), IUCN/SSC Antelope Specialist Group (2008h).

Figures

On following pages: 259. Western White-bellied Duiker (Cephalophus leucogaster); 260. Uele White-bellied Duiker (Cephalophus arrhenii); 261. Red-flanked Duiker (Cephalophus rufilatus); 262. Natal Red Duiker (Cephalophus natalensis); 263. Harvey's Duiker (Cephalophus harveyi); 264. Black-fronted Duiker (Cephalophus nigrifrons); 265. ltombwe Duiker (Cephalophus hypoxanthus); 266. Rwenzori Duiker (Cephalophus rubidus); 267. Mount Elgon Duiker (Cephalophus fosteri); 268. Mount Kenya Duiker (Cephalophus hooki)

Distribution. Itombwe Mountains in DR Congo , W of Lake Tanganyika.