''Petrocephalus catostoma'', the Churchill, is a

species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...

electric fish An electric fish is any fish that can Bioelectrogenesis, generate electric fields, whether to sense things around them, for defence, or to stun prey. Most fish able to produce shocks are also electroreceptive, meaning that they can sense electric ...

in the family

Mormyridae The Mormyridae, sometimes called "elephantfish" (more properly freshwater elephantfish), are a superfamily of weakly electric fish in the order Osteoglossiformes native to Africa. It is by far the largest family in the order, with around 200 sp ...

, found in the Rovuma River system including the

Niassa Reserve Niassa Reserve is a nature reserve in Cabo Delgado Province and Niassa Province, Mozambique. Covering over , it is the largest protected area in the country. The reserve is part of the Trans-Frontier Conservation Area and links to the Tanzanian ...

, and the western confluences to

Lake Malawi Lake Malawi, also known as Lake Nyasa in Tanzania and Lago Niassa in Mozambique, () is an African Great Lakes, African Great Lake and the southernmost lake in the East African Rift system, located between Malawi, Mozambique and Tanzania. It is ...

Size

This species reaches a length of .

References

Mormyridae Taxa named by Albert Günther Fish described in 1866 {{Osteoglossiformes-stub