Hylomyscus grandis Eisentraut 1969

Hylomyscus grandis Eisentraut 1969, Z. Saugetierk., 34: 300.

Type Locality: West Cameroon, Banso Highlands, Lake Oku on Mt Oku, 2100 m.

Vernacular Names: Mount Oku Hylomyscus.

Distribution: Recorded only from upper slopes of Mt Oku (Eisentraut, 1969 b, 1973).

Discussion: Still known only by the four specimens collected by Eisentraut. He (Eisentraut, 1969 b) described grandis as a subspecies of H. aeta, but it has a larger skull and significantly longer molar rows and is a separate species (Hutterer et al., 1992 a; our study of specimens at ZFMK). Eisentraut collected examples of H. alleni at the same altitude at Lake Oku (Eisentraut, 1969 b; our identifications of his specimens). In addition to H. grandis, other species of small mammals endemic to Mount Oku are the muroid rodents Lophuromys dieterleni, Lamottemys okuensis, and Lemniscomys mittendorfi and the golden mole Chrysochloris balsaci .