Definition: An aquatic biome that comprises systems of open-ocean and unprotected coastal habitats, characterized by exposure to wave action, tidal fluctuation, and ocean currents as well as systems that largely resemble these. Water in the marine biome is generally within the salinity range of seawater: 30 to 38 ppt.
Definition: length from the tip of the snout to the tip of the longer lobe of the caudal fin, usually measured with the lobes compressed along the midline. It is a straight-line measure, not measured over the curve of the body
Africa: rivers Ituri and Dja (middle Congo River basin) (Ref. 1880, 11970, 46901) in Democratic Republic of the Congo and Cameroon respectively, although some doubt is cast on the identity of the specimens from the Dja by Trewavas 1974 (p