Bathynellaceans: Bathynellacea

Bathynellaceans are found on all continents except Antarctica. They are not known to be from Central America, from islands that are volcanic in origin, and from some other islands, such as New Caledonia, Fiji, and the Caribbean islands.

Bathynellaceans are found mostly underground near freshwater habitats or in caves. They are sometimes collected on the surface in waters that are fed by underground water sources, such as wells, in sands along the shores of rivers and lakes, or in springs. At least one African species lives in hot springs and can tolerate temperatures up to 130°F (55°C). A few species can tolerate slightly salty water and are found near the seashore or in other brackish waters.

Bathynellaceans eat plant materials, worms, microscopic animals, and bacteria. Some species may be specialists and feed on just one or two of these groups of organisms.

No species of bathynellaceans are considered endangered or threatened.