''Nannothrissa'' is a genus of very small fish in the herring family, Clupeidae, endemic to the

Congo River The Congo River ( kg, Nzâdi Kôngo, french: Fleuve Congo, pt, Rio Congo), formerly also known as the Zaire River, is the second longest river in Africa, shorter only than the Nile, as well as the second largest river in the world by discharge ...

system in

Africa Africa is the world's second-largest and second-most populous continent, after Asia in both cases. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 6% of Earth's total surface area ...

. There are currently only two recognized species

Species

* '' Nannothrissa parva'' (

Regan The family name Regan, along with its cognates O'Regan, O Regan, Reagan, and O'Reagan, is an Anglicized form of the Irish surname Ó Riagáin or Ó Ríogáin, from Ua Riagáin. The meaning is likely to have originated in ancient Gaelic ''ri'' ...

, 1917) (Lake Tumba dwarf sprat) * '' Nannothrissa stewarti''

Poll Poll, polled, or polling may refer to: Figurative head counts * Poll, a formal election ** Election verification exit poll, a survey taken to verify election counts ** Polling, voting to make decisions or determine opinions ** Polling places o ...

& T. R. Roberts, 1976 (Mai-ndombe dwarf sprat)

References

* Clupeidae Fish of Africa Freshwater fish genera Taxa named by Max Poll {{Clupeiformes-stub