27. Ledermanniella sanagaensis C.Cusset, Bull. Mus. Natl. Hist. Nat. B, Adansonia Ser . 4, 6(3): 256 (1985)

Type.

Cameroon, Natchigal, J. & A. Raynal 10543 (YA).

Specimens examined.

Cameroon, J. & A. Raynal 10543 (YA); Natchigal, Sanaga waterfall, A. & J. Raynal 10542 (P).

Habitat.

River rapids and waterfalls.

Distribution.

Cameroon (Fig. 25).

Conservation status in Cameroon.

Ledermanniella sanagaensis is listed on http://www.iucnredlist.org as Critically Endangered (Ghogue 2010i). The taxon is endemic to Cameroon, and known only from the Sanaga waterfall at Natchigal. The extent of occurrence and area of occupancy are both estimated at 4 km2 each. There is a proposal to build a dam at the locality of the species. Based on this threat the earlier assessment of Ghogue (2010i) as Critically Endangered is maintained. IUCN Red List Category: Critically Endangered B2ab (ii, iii).