Stygobromus
Encyclopedia
Stygobromus is a genus of amphipod
crustacean
s that live in subterranean habitats. As well as a large number of species in 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); all the listed species are endemic to the United States
. One species, S. lucifugus
, is extinct
. Stygobromus includes the following species:
Amphipoda
Amphipoda is an order of malacostracan crustaceans with no carapace and generally with laterally compressed bodies. The name amphipoda means "different-footed", and refers to the different forms of appendages, unlike isopods, where all the legs are alike. Of the 7,000 species, 5,500 are classified...
crustacean
Crustacean
Crustaceans form a very large group of arthropods, usually treated as a subphylum, which includes such familiar animals as crabs, lobsters, crayfish, shrimp, krill and barnacles. The 50,000 described species range in size from Stygotantulus stocki at , to the Japanese spider crab with a leg span...
s that live in subterranean habitats. As well as a large number of species in North America
North America
North America is a continent wholly within the Northern Hemisphere and almost wholly within the Western Hemisphere. It is also considered a northern subcontinent of the Americas...
, a smaller number of species are also known from Eurasia
Eurasia
Eurasia is a continent or supercontinent comprising the traditional continents of Europe and Asia ; covering about 52,990,000 km2 or about 10.6% of the Earth's surface located primarily in the eastern and northern hemispheres...
. Most of the North American species live in areas which were not covered by the Laurentide ice sheet
Laurentide ice sheet
The Laurentide Ice Sheet was a massive sheet of ice that covered hundreds of thousands of square miles, including most of Canada and a large portion of the northern United States, multiple times during Quaternary glacial epochs. It last covered most of northern North America between c. 95,000 and...
, although a few species seem to have survived under the ice. A number of species are on the IUCN Red List
IUCN Red List
The IUCN Red List of Threatened Species , founded in 1963, is the world's most comprehensive inventory of the global conservation status of biological species. The International Union for Conservation of Nature is the world's main authority on the conservation status of species...
as endangered species
Endangered species
An endangered species is a population of organisms which is at risk of becoming extinct because it is either few in numbers, or threatened by changing environmental or predation parameters...
(EN) or vulnerable species
Vulnerable species
On 30 January 2010, the IUCN Red List of Threatened Species identified 9694 Vulnerable species, subspecies and varieties, stocks and sub-populations.-References:...
(VU); all the listed species are endemic to the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...
. One species, S. lucifugus
Stygobromus lucifugus
Stygobromus lucifugus is an extinct species of amphipod crustacean in the family Crangonyctidae. It was first described by Oliver Perry Hay who found it living in a well near Abingdon, Knox County, Illinois , and it was endemic to that state....
, is extinct
Extinction
In biology and ecology, extinction is the end of an organism or of a group of organisms , normally a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and recover may have been lost before this point...
. Stygobromus includes the following species:
- Stygobromus abditus Holsinger, 1978 (VirginiaVirginiaThe Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...
) - Stygobromus ackerlyi Holsinger, 1978 (GeorgiaGeorgia (U.S. state)Georgia is a state located in the southeastern United States. It was established in 1732, the last of the original Thirteen Colonies. The state is named after King George II of Great Britain. Georgia was the fourth state to ratify the United States Constitution, on January 2, 1788...
) - Stygobromus alabamensis (Stout, 1911)
- Stygobromus albapinus Taylor & Holsinger, 2011 (NevadaNevadaNevada is a state in the western, mountain west, and southwestern regions of the United States. With an area of and a population of about 2.7 million, it is the 7th-largest and 35th-most populous state. Over two-thirds of Nevada's people live in the Las Vegas metropolitan area, which contains its...
) - Stygobromus allegheniensis (Holsinger, 1967) (New YorkNew YorkNew York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...
to West VirginiaWest VirginiaWest Virginia is a state in the Appalachian and Southeastern regions of the United States, bordered by Virginia to the southeast, Kentucky to the southwest, Ohio to the northwest, Pennsylvania to the northeast and Maryland to the east...
) - Stygobromus ambulans (F. Müller, 1846)
- Stygobromus apscheronia (Derzhavin, 1945) (AzerbaijanAzerbaijanAzerbaijan , officially the Republic of Azerbaijan is the largest country in the Caucasus region of Eurasia. Located at the crossroads of Western Asia and Eastern Europe, it is bounded by the Caspian Sea to the east, Russia to the north, Georgia to the northwest, Armenia to the west, and Iran to...
) - Stygobromus araeus (Holsinger, 1969) (VirginiaVirginiaThe Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...
) - Stygobromus arizonensis Holsinger, 1974
- Stygobromus balconis (Hubricht, 1943)
- Stygobromus baroodyi Holsinger, 1978 (VirginiaVirginiaThe Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...
) - Stygobromus barri (Holsinger, 1967)
- Stygobromus barryi Holsinger, 1978 (TennesseeTennesseeTennessee is a U.S. state located in the Southeastern United States. It has a population of 6,346,105, making it the nation's 17th-largest state by population, and covers , making it the 36th-largest by total land area...
) - Stygobromus behningi (Birstein, 1948)
- Stygobromus bifurcatus (Holsinger, 1967)
- Stygobromus biggersi Holsinger, 1978 (VirginiaVirginiaThe Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...
to PennsylvaniaPennsylvaniaThe Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...
) - Stygobromus blinni Wang & Holsinger, 2001
- Stygobromus borealis Holsinger, 1978 (VermontVermontVermont is a state in the New England region of the northeastern United States of America. The state ranks 43rd in land area, , and 45th in total area. Its population according to the 2010 census, 630,337, is the second smallest in the country, larger only than Wyoming. It is the only New England...
, New YorkNew YorkNew York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...
) - Stygobromus boultoni Wang & Holsinger, 2001
- Stygobromus bowmani (Holsinger, 1967)
- Stygobromus canadensis Holsinger, 1980
- Stygobromus carolinensis Holsinger, 1978 (North CarolinaNorth CarolinaNorth Carolina is a state located in the southeastern United States. The state borders South Carolina and Georgia to the south, Tennessee to the west and Virginia to the north. North Carolina contains 100 counties. Its capital is Raleigh, and its largest city is Charlotte...
) - Stygobromus chamberlaini Ellis, 1941
- Stygobromus cherylae Wang & Holsinger, 2001
- Stygobromus clantoni (Creaser, 1934)
- Stygobromus coeca (Dobraenu & Manolache, 1951)
- Stygobromus coloradensis Ward, 1977
- Stygobromus conradi (Holsinger, 1967) (VirginiaVirginiaThe Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...
) - Stygobromus cooperi (Holsinger, 1967) (West VirginiaWest VirginiaWest Virginia is a state in the Appalachian and Southeastern regions of the United States, bordered by Virginia to the southeast, Kentucky to the southwest, Ohio to the northwest, Pennsylvania to the northeast and Maryland to the east...
) - Stygobromus cowani Wang & Holsinger, 2001
- Stygobromus culveri Holsinger, 1978 (West VirginiaWest VirginiaWest Virginia is a state in the Appalachian and Southeastern regions of the United States, bordered by Virginia to the southeast, Kentucky to the southwest, Ohio to the northwest, Pennsylvania to the northeast and Maryland to the east...
) - Stygobromus cumberlandus Holsinger, 1978 (VirginiaVirginiaThe Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...
) - Stygobromus curroae Wang & Holsinger, 2001
- Stygobromus dejectus (Holsinger, 1967)
- Stygobromus dentata (Hubricht, 1943)
- Stygobromus dershavini (Behning, 1928)
- Stygobromus dicksoni Holsinger, 1978 (AlabamaAlabamaAlabama is a state located in the southeastern region of the United States. It is bordered by Tennessee to the north, Georgia to the east, Florida and the Gulf of Mexico to the south, and Mississippi to the west. Alabama ranks 30th in total land area and ranks second in the size of its inland...
, GeorgiaGeorgia (U.S. state)Georgia is a state located in the southeastern United States. It was established in 1732, the last of the original Thirteen Colonies. The state is named after King George II of Great Britain. Georgia was the fourth state to ratify the United States Constitution, on January 2, 1788...
) - Stygobromus donensis (Martynov, 1919)
- Stygobromus duplus Wang & Holsinger, 2001
- Stygobromus elatus (Holsinger, 1967)
- Stygobromus elliotti Holsinger, 1974
- Stygobromus emarginatus (Hubricht, 1943) (MarylandMarylandMaryland is a U.S. state located in the Mid Atlantic region of the United States, bordering Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware to its east...
, West VirginiaWest VirginiaWest Virginia is a state in the Appalachian and Southeastern regions of the United States, bordered by Virginia to the southeast, Kentucky to the southwest, Ohio to the northwest, Pennsylvania to the northeast and Maryland to the east...
) - Stygobromus ephemerus (Holsinger, 1969) (VirginiaVirginiaThe Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...
) - Stygobromus estesi Holsinger, 1978 (VirginiaVirginiaThe Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...
) - Stygobromus exilis Hubricht, 1943
- Stygobromus fecundus Holsinger, 1978 (TennesseeTennesseeTennessee is a U.S. state located in the Southeastern United States. It has a population of 6,346,105, making it the nation's 17th-largest state by population, and covers , making it the 36th-largest by total land area...
) - Stygobromus fergusoni Holsinger, 1978 (VirginiaVirginiaThe Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...
) - Stygobromus finleyi Holsinger, 1978 (TennesseeTennesseeTennessee is a U.S. state located in the Southeastern United States. It has a population of 6,346,105, making it the nation's 17th-largest state by population, and covers , making it the 36th-largest by total land area...
) - Stygobromus flagellatus (J. E. Benedict, 1896)
- Stygobromus fontinalis Wang & Holsinger, 2001
- Stygobromus franzi Holsinger, 1978 (MarylandMarylandMaryland is a U.S. state located in the Mid Atlantic region of the United States, bordering Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware to its east...
) - Stygobromus gallawayae Wang & Holsinger, 2001
- Stygobromus glacialis Wang & Holsinger, 2001
- Stygobromus gracilipes (Holsinger, 1967) (VirginiaVirginiaThe Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...
to PennsylvaniaPennsylvaniaThe Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...
) - Stygobromus gradyi Holsinger, 1974
- Stygobromus grahami Holsinger, 1974
- Stygobromus grandis Holsinger, 1978 (GeorgiaGeorgia (U.S. state)Georgia is a state located in the southeastern United States. It was established in 1732, the last of the original Thirteen Colonies. The state is named after King George II of Great Britain. Georgia was the fourth state to ratify the United States Constitution, on January 2, 1788...
) - Stygobromus hadenoecus (Holsinger, 1966)
- Stygobromus harai Holsinger, 1974
- Stygobromus hayiStygobromus hayiStygobromus 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...
(Hubricht & Mackin, 1940) (District of ColumbiaWashington, D.C.Washington, D.C., formally the District of Columbia and commonly referred to as Washington, "the District", or simply D.C., is the capital of the United States. On July 16, 1790, the United States Congress approved the creation of a permanent national capital as permitted by the U.S. Constitution....
) - Stygobromus herbsti Wang & Holsinger, 2001
- Stygobromus heteropodus Hubricht, 1943
- Stygobromus hoffmani Holsinger, 1978 (VirginiaVirginiaThe Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...
) - Stygobromus holsingeri Ward, 1977
- Stygobromus hubbsi Shoemaker, 1942
- Stygobromus hyporheicus Wang & Holsinger, 2001
- Stygobromus hyrcana (Dershavin, 1939)
- Stygobromus idahoensis Wang & Holsinger, 2001
- Stygobromus imperialis Wang & Holsinger, 2001
- Stygobromus indentatus (Holsinger, 1967) (North CarolinaNorth CarolinaNorth Carolina is a state located in the southeastern United States. The state borders South Carolina and Georgia to the south, Tennessee to the west and Virginia to the north. North Carolina contains 100 counties. Its capital is Raleigh, and its largest city is Charlotte...
, VirginiaVirginiaThe Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...
) - Stygobromus inexpectatus Holsinger, 1978 (AlabamaAlabamaAlabama is a state located in the southeastern region of the United States. It is bordered by Tennessee to the north, Georgia to the east, Florida and the Gulf of Mexico to the south, and Mississippi to the west. Alabama ranks 30th in total land area and ranks second in the size of its inland...
) - Stygobromus interitus Holsinger, 1978 (VirginiaVirginiaThe Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...
) - Stygobromus intermedia (Dobreanu, Manolache & Piascariu, 1952)
- Stygobromus interstitialis Wang & Holsinger, 2001
- Stygobromus iowae Hubricht, 1943
- Stygobromus jakutana (Martynov, 1931)
- Stygobromus jemezensis Wang & Holsinger, 2001
- Stygobromus johanseni (Shoemaker, 1920)
- Stygobromus kazakhstanica Kulkina, 1992
- Stygobromus kenki Holsinger, 1978 (District of ColumbiaWashington, D.C.Washington, D.C., formally the District of Columbia and commonly referred to as Washington, "the District", or simply D.C., is the capital of the United States. On July 16, 1790, the United States Congress approved the creation of a permanent national capital as permitted by the U.S. Constitution....
, VirginiaVirginiaThe Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...
) - Stygobromus lacicolus Holsinger, 1974
- Stygobromus lanensis Wang & Holsinger, 2001
- Stygobromus latus Wang & Holsinger, 2001
- Stygobromus leensis Holsinger, 1978 (VirginiaVirginiaThe Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...
) - Stygobromus lepida (Mateus & Mateus, 1991)
- Stygobromus levanidovae (G. Karaman, 1991)
- Stygobromus limbus Wang & Holsinger, 2001
- Stygobromus longidactylus (S. Karaman, 1929)
- Stygobromus longipes (Holsinger, 1966)
- Stygobromus lucifugusStygobromus lucifugusStygobromus lucifugus is an extinct species of amphipod crustacean in the family Crangonyctidae. It was first described by Oliver Perry Hay who found it living in a well near Abingdon, Knox County, Illinois , and it was endemic to that state....
(Hay, 1882) - Stygobromus mackenziei Holsinger, 1974
- Stygobromus mackini Hubricht, 1943 (TennesseeTennesseeTennessee is a U.S. state located in the Southeastern United States. It has a population of 6,346,105, making it the nation's 17th-largest state by population, and covers , making it the 36th-largest by total land area...
to West VirginiaWest VirginiaWest Virginia is a state in the Appalachian and Southeastern regions of the United States, bordered by Virginia to the southeast, Kentucky to the southwest, Ohio to the northwest, Pennsylvania to the northeast and Maryland to the east...
) - Stygobromus meschtscherica (Borutsky, 1929)
- Stygobromus minutus Holsinger, 1978 (GeorgiaGeorgia (U.S. state)Georgia is a state located in the southeastern United States. It was established in 1732, the last of the original Thirteen Colonies. The state is named after King George II of Great Britain. Georgia was the fourth state to ratify the United States Constitution, on January 2, 1788...
) - Stygobromus montanensis Holsinger, 1974
- Stygobromus montanus (Holsinger, 1967)
- Stygobromus morrisoni (Holsinger, 1967) (VirginiaVirginiaThe Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...
, West VirginiaWest VirginiaWest Virginia is a state in the Appalachian and Southeastern regions of the United States, bordered by Virginia to the southeast, Kentucky to the southwest, Ohio to the northwest, Pennsylvania to the northeast and Maryland to the east...
) - Stygobromus mundus (Holsinger, 1967) (VirginiaVirginiaThe Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...
) - Stygobromus myersae Wang & Holsinger, 2001
- Stygobromus mysticus Holsinger, 1974
- Stygobromus nanus Holsinger, 1978 (West VirginiaWest VirginiaWest Virginia is a state in the Appalachian and Southeastern regions of the United States, bordered by Virginia to the southeast, Kentucky to the southwest, Ohio to the northwest, Pennsylvania to the northeast and Maryland to the east...
) - Stygobromus nortoni (Holsinger, 1969)
- Stygobromus obrutus Holsinger, 1978 (VirginiaVirginiaThe Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...
) - Stygobromus obscurus Holsinger, 1974
- Stygobromus onondagaensis (Hubricht & Mackin, 1940)
- Stygobromus oregonensis Holsinger, 1974
- Stygobromus ozarkensis (Holsinger, 1967)
- Stygobromus parvus (Holsinger, 1969) (VirginiaVirginiaThe Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...
) - Stygobromus peckiStygobromus peckiStygobromus pecki is a rare species of crustacean known by the common name Peck's cave amphipod. It is endemic to Texas in the United States, where lives in only two springs in Comal County...
(Holsinger, 1967) - Stygobromus pennaki Ward, 1977
- Stygobromus philareti (Birstein, 1948)
- Stygobromus phreaticus Holsinger, 1978 (VirginiaVirginiaThe Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...
) - Stygobromus pizzinii (Shoemaker, 1938) (VirginiaVirginiaThe Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...
to PennsylvaniaPennsylvaniaThe Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...
) - Stygobromus pollostus Holsinger, 1978 (VirginiaVirginiaThe Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...
) - Stygobromus pseudospinosus Holsinger, 1978 (VirginiaVirginiaThe Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...
) - Stygobromus pusillus (Martynov, 1930) (RussiaRussiaRussia or , officially known as both Russia and the Russian Federation , is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects...
) - Stygobromus putealis (Holmes, 1909)
- Stygobromus puteanus Holsinger, 1974
- Stygobromus quatsinensis Holsinger & Shaw, 1987
- Stygobromus rallus Wang & Holsinger, 2001
- Stygobromus redactus Holsinger, 1978 (West VirginiaWest VirginiaWest Virginia is a state in the Appalachian and Southeastern regions of the United States, bordered by Virginia to the southeast, Kentucky to the southwest, Ohio to the northwest, Pennsylvania to the northeast and Maryland to the east...
) - Stygobromus reddelli (Holsinger, 1966)
- Stygobromus rudolphi Wang & Holsinger, 2001
- Stygobromus russelli (Holsinger, 1967)
- Stygobromus saltuaris Wang & Holsinger, 2001
- Stygobromus secundus Bousfield & Holsinger, 1981
- Stygobromus sheldoni Holsinger, 1974
- Stygobromus sierrensis Holsinger, 1974
- Stygobromus simplex Wang & Holsinger, 2001
- Stygobromus smithi Hubricht, 1943
- Stygobromus sparsus Holsinger, 1978 (TennesseeTennesseeTennessee is a U.S. state located in the Southeastern United States. It has a population of 6,346,105, making it the nation's 17th-largest state by population, and covers , making it the 36th-largest by total land area...
) - Stygobromus spinatus (Holsinger, 1967) (West VirginiaWest VirginiaWest Virginia is a state in the Appalachian and Southeastern regions of the United States, bordered by Virginia to the southeast, Kentucky to the southwest, Ohio to the northwest, Pennsylvania to the northeast and Maryland to the east...
) - Stygobromus spinosus (Hubricht & Mackin, 1940) (VirginiaVirginiaThe Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...
) - Stygobromus stadukhini (Derzhavin, 1930)
- Stygobromus stegerorum Holsinger, 1978 (VirginiaVirginiaThe Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...
) - Stygobromus stellmacki (Holsinger, 1967) (PennsylvaniaPennsylvaniaThe Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...
) - Stygobromus subtilis (Hubricht, 1943)
- Stygobromus tahoensis Holsinger, 1974
- Stygobromus tenuis (S. I. Smith, 1874) (ConnecticutConnecticutConnecticut is a state in the New England region of the northeastern United States. It is bordered by Rhode Island to the east, Massachusetts to the north, and the state of New York to the west and the south .Connecticut is named for the Connecticut River, the major U.S. river that approximately...
to MarylandMarylandMaryland is a U.S. state located in the Mid Atlantic region of the United States, bordering Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware to its east...
) - Stygobromus trinus Wang & Holsinger, 2001
- Stygobromus tritus Holsinger, 1974
- Stygobromus urospinatus Wang & Holsinger, 2001
- Stygobromus utahensis Wang & Holsinger, 2001
- Stygobromus vitreus Cope, 1872
- Stygobromus wachuschtii (Behning, 1940)
- Stygobromus wahkeenensis Wang & Holsinger, 2001
- Stygobromus wardi Wang & Holsinger, 2001
- Stygobromus wengerorum Holsinger, 1974