Conraua goliath (Boulenger, 1906) Photo figure 13B

TYPE LOCALITY.— “Efulen”, South Cameroon .

DISTRIBUTION.— Conraua goliath is distributed over south-western Cameroon (Nkongsamba region) and mainland Equatorial Guinea. In Equatorial Guinea, it has been recorded in several localities in Río Muni (Sabater Pi 1985; De la Riva 1994) (Map 14A).

COMMENTS.— This is the largest living frog in the world. The holotype measured 25 cm of snout-vent length (Boulenger 1906b), and the largest specimen recorded weighted 3.3 kg (Sabater Pi 1985). Adults live in the fast-flowing rivers in lowland rainforest, below 1000 m a.s.l., where they rest over the rocks, emerging from rapids during the day, while they move along the river margins during the night (Sabater Pi 1985). Some aspects of their reproductive behaviour, such as nest construction for spawing, have been recently described (Schäfer et al. 2019).

SPECIMENS EXAMINED.— Twenty specimens. [Río Muni] (MNCN 4050) . Niefang, Sense (1º33´N, 09º48´W) June / July 1964 (EBD 2699–2701, EBD 2754–2756, EBD 20842–20854); San Joaquín de Ndyiacom (EBD 31507) .