''Stygobromus putealis'', commonly called the Wisconsin well amphipod, is a

phreatobite ''Phreatic'' is a term used in hydrology to refer to aquifers, in speleology to refer to cave passages, and in volcanology to refer to a type of volcanic eruption. Hydrology The term phreatic (the word originates from the Greek , meaning "we ...

species of

amphipod Amphipoda is an order of malacostracan crustaceans with no carapace and generally with laterally compressed bodies. Amphipods range in size from and are mostly detritivores or scavengers. There are more than 9,900 amphipod species so far descr ...

in family

Crangonyctidae Crangonyctidae is a family of cave-dwelling freshwater amphipod crustaceans. It contains the following genera: *'' Amurocrangonyx'' Sidorov & Holsinger, 2007 *'' Bactrurus'' Hay, 1902 *'' Crangonyx'' Bate, 1859 *'' Lyurella'' Derzhavin, ...

. It is endemic to Wisconsin in the United States.

References

Freshwater crustaceans of North America Crustaceans described in 1909 putealis Endemic fauna of Wisconsin {{Amphipod-stub