Stygobromus is a genus of amphipod crustaceans that live in subterranean habitats. The majority of the listed species are endemic to North America (one from Canada, the rest from the United States), 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 includes the following species:
- Stygobromus abditus <small>Holsinger, 1978</small> (Virginia)
- Stygobromus ackerlyi <small>Holsinger, 1978</small> (Georgia)
- Stygobromus alabamensis <small>(Stout, 1911)</small>
- Stygobromus albapinus <small>Taylor & Holsinger, 2011</small> (Nevada)
- Stygobromus allegheniensis <small>(Holsinger, 1967)</small> (New York to West Virginia)
- Stygobromus ambulans <small>(F. Müller, 1846)</small>
- Stygobromus amicus <small>Holsinger, 2014</small>
- Stygobromus anastasiae <small>Sidorov, Holsinger & Takhteev, 2010</small> (Siberia, Russia)
- Stygobromus apscheronia <small>(Derzhavin, 1945)</small> (Azerbaijan)
- Stygobromus araeus <small>(Holsinger, 1969)</small> (Virginia, North Carolina)
- Stygobromus arizonensis <small>Holsinger, 1974</small> (Arizona)
- Stygobromus bakeri <small>Gibson & Hutchins in Gibson, Hutchins, Krejca, Diaz & Sprouse, 2021</small>
- Stygobromus balconis <small>(Hubricht, 1943)</small> (Texas)
- Stygobromus baroodyi <small>Holsinger, 1978</small> (Virginia)
- Stygobromus barri <small>(Holsinger, 1967)</small> (Missouri)
- Stygobromus barryi <small>Holsinger, 1978</small> (Tennessee)
- Stygobromus behningi <small>(Birstein, 1948)</small>
- Stygobromus bifurcatus <small>(Holsinger, 1967)</small> (Texas)
- Stygobromus biggersi <small>Holsinger, 1978</small> (Virginia to Pennsylvania)
- Stygobromus blinni <small>Wang & Holsinger, 2001</small>
- Stygobromus borealis <small>Holsinger, 1978</small> (Vermont, New York)
- Stygobromus boultoni <small>Wang & Holsinger, 2001</small>
- Stygobromus bowmani <small>(Holsinger, 1967)</small> (Oklahoma)
- Stygobromus caecilius <small>Holsinger, 2011</small>
- Stygobromus canadensis <small>Holsinger, 1980</small> (Alberta, Canada)
- Stygobromus carolinensis <small>Holsinger, 1978</small> (North Carolina)
- Stygobromus chamberlaini <small>Ellis, 1941</small>
- Stygobromus cherylae <small>Wang & Holsinger, 2001</small>
- Stygobromus clantoni <small>(Creaser, 1934)</small> (Kansas, Missouri)
- Stygobromus coeca <small>(Dobraenu & Manolache, 1951)</small>
- Stygobromus coloradensis <small>Ward, 1977</small>
- Stygobromus conradi <small>(Holsinger, 1967)</small> (Virginia)
- Stygobromus cooperi <small>(Holsinger, 1967)</small> (West Virginia)
- Stygobromus cowani <small>Wang & Holsinger, 2001</small>
- Stygobromus culveri <small>Holsinger, 1978</small> (West Virginia)
- Stygobromus cumberlandus <small>Holsinger, 1978</small> (Virginia)
- Stygobromus curroae <small>Wang & Holsinger, 2001</small>
- Stygobromus dejectus <small>(Holsinger, 1967)</small> (Texas)
- Stygobromus dentata <small>(Hubricht, 1943)</small>
- Stygobromus dershavini <small>(Behning, 1928)</small>
- Stygobromus dicksoni <small>Holsinger, 1978</small> (Alabama, Georgia)
- Stygobromus donensis <small>(Martynov, 1919)</small>
- Stygobromus doughertyensis <small>Cannizzaro & Sawicki in Cannizzaro, Balding, Stine & Sawicki, 2019</small>
- Stygobromus duplus <small>Wang & Holsinger, 2001</small>
- Stygobromus elatus <small>(Holsinger, 1967)</small> (Arkansas)
- Stygobromus elliotti <small>Holsinger, 1974</small>
- Stygobromus emarginatus <small>(Hubricht, 1943)</small> (Maryland, West Virginia)
- Stygobromus ephemerus <small>(Holsinger, 1969)</small> (Virginia)
- Stygobromus estesi <small>Holsinger, 1978</small> (Virginia)
- Stygobromus exilis <small>Hubricht, 1943</small>
- Stygobromus fecundus <small>Holsinger, 1978</small> (Tennessee)
- Stygobromus felleri <small>Holsinger, 2011</small>
- Stygobromus fergusoni <small>Holsinger, 1978</small> (Virginia)
- Stygobromus finleyi <small>Holsinger, 1978</small> (Tennessee)
- Stygobromus flagellatus <small>(J. E. Benedict, 1896)</small> (Texas)
- Stygobromus floridanus <small>Holsinger & Sawicki, 2016</small>
- Stygobromus foliatus <small>Holsinger, 2011</small>
- Stygobromus fontinalis <small>Wang & Holsinger, 2001</small>
- Stygobromus franzi <small>Holsinger, 1978</small> (Maryland)
- Stygobromus gallawayae <small>Wang & Holsinger, 2001</small>
- Stygobromus glacialis <small>Wang & Holsinger, 2001</small>
- Stygobromus gracilipes <small>(Holsinger, 1967)</small> (Virginia to Pennsylvania)
- Stygobromus gradyi <small>Holsinger, 1974</small> (California)
- Stygobromus grahami <small>Holsinger, 1974</small>
- Stygobromus grandis <small>Holsinger, 1978</small> (Georgia)
- Stygobromus hadenoecus <small>(Holsinger, 1966)</small> (Texas)
- Stygobromus harai <small>Holsinger, 1974</small> (California)
- Stygobromus hayi <small>(Hubricht & Mackin, 1940)</small> (District of Columbia)
- Stygobromus herbsti <small>Wang & Holsinger, 2001</small>
- Stygobromus heteropodus <small>Hubricht, 1943</small> (Missouri)
- Stygobromus hoffmani <small>Holsinger, 1978</small> (Virginia)
- Stygobromus holsingeri <small>Ward, 1977</small>
- Stygobromus hubbardi <small>Holsinger, 2009</small>
- Stygobromus hubbsi <small>Shoemaker, 1942</small> (Oregon)
- Stygobromus hyporheicus <small>Wang & Holsinger, 2001</small>
- Stygobromus hyrcana <small>(Dershavin, 1939)</small>
- Stygobromus idahoensis <small>Wang & Holsinger, 2001</small>
- Stygobromus imperialis <small>Wang & Holsinger, 2001</small>
- Stygobromus indentatus <small>(Holsinger, 1967)</small> (Maryland, North Carolina and Virginia)
- Stygobromus inexpectatus <small>Holsinger, 1978</small> (Alabama)
- Stygobromus interitus <small>Holsinger, 1978</small> (Virginia)
- Stygobromus intermedia <small>(Dobreanu, Manolache & Piascariu, 1952)</small>
- Stygobromus interstitialis <small>Wang & Holsinger, 2001</small>
- Stygobromus iowae <small>Hubricht, 1943</small>
- Stygobromus jakutana <small>(Martynov, 1931)</small>
- Stygobromus jemezensis <small>Wang & Holsinger, 2001</small>
- Stygobromus johanseni <small>(Shoemaker, 1920)</small>
- Stygobromus kazakhstanica <small>Kulkina, 1992</small>
- Stygobromus kenki <small>Holsinger, 1978</small> (District of Columbia, Virginia)
- Stygobromus lacicolus <small>Holsinger, 1974</small>
- Stygobromus lanensis <small>Wang & Holsinger, 2001</small>
- Stygobromus latus <small>Wang & Holsinger, 2001</small>
- Stygobromus leensis <small>Holsinger, 1978</small> (Virginia)
- Stygobromus lepida <small>(Mateus & Mateus, 1991)</small>
- Stygobromus levanidovae <small>(G. Karaman, 1991)</small>
- Stygobromus limbus <small>Wang & Holsinger, 2001</small>
- Stygobromus longidactylus <small>(S. Karaman, 1929)</small>
- Stygobromus longipes <small>(Holsinger, 1966)</small> (Texas)
- Stygobromus lucifugus <small>(Hay, 1882)</small> (Illinois)
- Stygobromus mackenziei <small>Holsinger, 1974</small> (California)
- Stygobromus mackini <small>Hubricht, 1943</small> (Tennessee to West Virginia)
- Stygobromus meschtscherica <small>(Borutsky, 1929)</small>
- Stygobromus mikhaili <small>Sidorov, Holsinger & Takhteev, 2010</small> (Siberia, Russia)
- Stygobromus minutus <small>Holsinger, 1978</small> (Georgia)
- Stygobromus montanensis <small>Holsinger, 1974</small> (Montana)
- Stygobromus montanus <small>(Holsinger, 1967)</small> (Arkansas)
- Stygobromus morrisoni <small>(Holsinger, 1967)</small> (Virginia, West Virginia)
- Stygobromus mundus <small>(Holsinger, 1967)</small> (Virginia)
- Stygobromus myersae <small>Wang & Holsinger, 2001</small>
- Stygobromus mysticus <small>Holsinger, 1974</small>
- Stygobromus nanus <small>Holsinger, 1978</small> (West Virginia)
- Stygobromus nortoni <small>(Holsinger, 1969)</small> (Tennessee)
- Stygobromus obrutus <small>Holsinger, 1978</small> (Virginia)
- Stygobromus obscurus <small>Holsinger, 1974</small>
- Stygobromus onondagaensis <small>(Hubricht & Mackin, 1940)</small> (Arkansas, Kansas, Missouri and Oklahoma)
- Stygobromus oregonensis <small>Holsinger, 1974</small> (Oregon)
- Stygobromus ozarkensis <small>(Holsinger, 1967)</small> (Arkansas, Missouri and Oklahoma)
- Stygobromus parvus <small>(Holsinger, 1969)</small> (West Virginia)
- Stygobromus paxillus <small>Holsinger, 2011</small>
- Stygobromus pecki <small>(Holsinger, 1967)</small> (Texas)
- Stygobromus pennaki <small>Ward, 1977</small>
- Stygobromus philareti <small>(Birstein, 1948)</small>
- Stygobromus phreaticus <small>Holsinger, 1978</small> (Virginia)
- Stygobromus pizzinii <small>(Shoemaker, 1938)</small> (District of Columbia, Maryland, Pennsylvania and Virginia)
- Stygobromus pollostus <small>Holsinger, 1978</small> (Virginia)
- Stygobromus pseudospinosus <small>Holsinger, 1978</small> (Virginia)
- Stygobromus putealis <small>(Holmes, 1909)</small> (Wisconsin)
- Stygobromus puteanus <small>Holsinger, 1974</small>
- Stygobromus quatsinensis <small>Holsinger & Shaw, 1987</small>
- Stygobromus rallus <small>Wang & Holsinger, 2001</small>
- Stygobromus redactus <small>Holsinger, 1978</small> (West Virginia)
- Stygobromus reddelli <small>(Holsinger, 1966)</small> (Texas)
- Stygobromus rudolphi <small>Wang & Holsinger, 2001</small>
- Stygobromus russelli <small>(Holsinger, 1967)</small> (Texas)
- Stygobromus saltuaris <small>Wang & Holsinger, 2001</small>
- Stygobromus secundus <small>Bousfield & Holsinger, 1981</small>
- Stygobromus sheldoni <small>Holsinger, 1974</small>
- Stygobromus sierrensis <small>Holsinger, 1974</small>
- Stygobromus simplex <small>Wang & Holsinger, 2001</small>
- Stygobromus smithi <small>Hubricht, 1943</small> (Alabama)
- Stygobromus sparsus <small>Holsinger, 1978</small> (Tennessee)
- Stygobromus spinatus <small>(Holsinger, 1967)</small> (West Virginia)
- Stygobromus spinosus <small>(Hubricht & Mackin, 1940)</small> (Virginia)
- Stygobromus stegerorum <small>Holsinger, 1978</small> (Virginia)
- Stygobromus stellmacki <small>(Holsinger, 1967)</small> (Pennsylvania)
- Stygobromus subtilis <small>(Hubricht, 1943)</small> (Illinois, Michigan and Missouri)
- Stygobromus tahoensis <small>Holsinger, 1974</small>
- Stygobromus tenuis <small>(S. I. Smith, 1874)</small> (Connecticut to Maryland)
- Stygobromus trinus <small>Wang & Holsinger, 2001</small>
- Stygobromus tritus <small>Holsinger, 1974</small>
- Stygobromus urospinatus <small>Wang & Holsinger, 2001</small>
- Stygobromus utahensis <small>Wang & Holsinger, 2001</small> (Utah)
- Stygobromus vitreus <small>Cope, 1872</small>
- Stygobromus wahkeenensis <small> Wang & Holsinger, 2001</small>
- Stygobromus wardi <small>Wang & Holsinger, 2001</small>
- Stygobromus wengerorum <small>Holsinger, 1974</small> (California)
References