Stygobromus is a genus of amphipod crustaceans that live in subterranean habitats. The majority of the listed species are endemic to North America, a smaller number of species are also known from Eurasia. Most of the North American species live in areas which were not covered by the Laurentide Ice Sheet, although a few species seem to have survived under the ice. A number of species are on the IUCN Red List as endangered species (EN) or vulnerable species (VU); one species, S. lucifugus, is extinct.
Stygobromus balconis, the Balcones cave amphipod, is a troglomorphic species of amphipod in family Crangonyctidae. It is endemic to Texas in the United States.
Stygobromus barri, commonly called Barr's cave amphipod, is a troglomorphic species of amphipod in family Crangonyctidae. It is endemic to Missouri in the United States.
Stygobromus bifurcatus, the bifurcated cave amphipod, is a troglomorphic species of amphipod in family Crangonyctidae. It is endemic to Texas in the United States.
Stygobromus bowmani, commonly called Bowman's cave amphipod, is a troglomorphic species of amphipod in family Crangonyctidae. It is endemic to Oklahoma in the United States.
Stygobromus conradi, commonly called Burnsville Cove cave amphipod, is a troglomorphic species of amphipod in family Crangonyctidae. It is endemic to Virginia in the United States.
Stygobromus dejectus, commonly called Cascade Cave amphipod, is a troglomorphic species of amphipod in family Crangonyctidae. It is endemic to Texas in the United States.
Stygobromus emarginatus, commonly called Greenbrier cave amphipod, is a troglomorphic species of amphipod in family Crangonyctidae. It is native to Maryland and West Virginia in the United States.
Stygobromus ephemerus, commonly called ephemeral cave amphipod, is a troglomorphic species of amphipod in family Crangonyctidae. It is endemic to Virginia in the United States.
Stygobromus harai, commonly called Hara's cave amphipod, is a troglomorphic species of amphipod in family Crangonyctidae. It is endemic to Tuolumne County, California in the United States.
Stygobromus hayi is a rare species of crustacean known by the common name Hay's spring amphipod. It is endemic to the District of Columbia in the United States, where it occurs only in Rock Creek, a tributary of the Potomac River. It is a federally listed endangered species, is listed as Endangered on the IUCN Red List, and as Critically Imperiled by NatureServe.
Stygobromus heteropodus, commonly called Pickle Springs amphipod, is a phreatobite species of amphipod in family Crangonyctidae. It is endemic to Ste. Genevieve County, Missouri in the United States.
Stygobromus hubbsi, commonly called Malheur Cave amphipod, is a troglomorphic species of amphipod in family Crangonyctidae. It is endemic to Oregon in the United States. It is only found in Malheur Cave, which is a 3,000 ft (910 m) long lava tube.
Stygobromus indentatus, the Tidewater Stygonectid amphipod is a species of crustacean in family Crangonyctidae. It is native to Maryland, North Carolina and Virginia in the United States. Its natural habitat is groundwater aquifers in the Tidewater region.
Stygobromus longipes, commonly called long-legged cave amphipod, is a troglomorphic species of amphipod in family Crangonyctidae. It is endemic to Texas in the United States.
Stygobromus mackenziei, commonly called Mackenzie's cave amphipod, is a troglomorphic species of amphipod in family Crangonyctidae. It is endemic to California, where it occurs only in Empire Cave. This cave is part of the Porter Caves, in the grounds of University of California, Santa Cruz.
Stygobromus morrisoni, commonly called Morrison's cave amphipod, is a troglomorphic species of amphipod in family Crangonyctidae. It is native to Virginia and West Virginia, in the United States.
Stygobromus mundus, commonly called Bath County cave amphipod, is a troglomorphic species of amphipod in family Crangonyctidae. It is endemic to Bath County, Virginia in the United States.
Stygobromus ozarkensis, commonly called Ozark cave amphipod, is a troglomorphic species of amphipod in family Crangonyctidae. It is native to Arkansas, Missouri and Oklahoma in the United States.
Stygobromus putealis, commonly called the Wisconsin well amphipod, is a phreatobite species of amphipod in family Crangonyctidae. It is endemic to Wisconsin in the United States.
