| Scientific Name | Author | English Name |
|---|---|---|
| Bactrurus brachycaudus | Hubricht & Mackin, 1940 | Short-tail bactrurid |
| Bactrurus hubrichti | Shoemaker, 1945 | Kansas well bactrurid |
| Bactrurus mucronatus | (Forbes, 1876) | Mucronate bactrurid |
| Crangonyx aberrans | Smith, 1983 | Aberrant crangonyctid |
| Crangonyx alpinus | Bousfield, 1963 | Alpine Lake crangonyctid |
| Crangonyx anomalus | Hubricht, 1943 | Large male crangonyctid |
| Crangonyx antennatus | Cope & Packard, 1881 | Appalachian Valley crangonyctid |
| Crangonyx dearolfi | Shoemaker, 1942 | Pennsylvania Cave crangonyctid |
| Crangonyx floridanus | Bousfield, 1963 | Florida crangonyctid |
| Crangonyx forbesi | (Hubricht & Mackin, 1940) | Forbes crangonyctid |
| Crangonyx gracilis | Smith, 1871 | Northern Lake crangonyctid |
| Crangonyx grandimanus | Bousfield, 1963 | Florida Cave crangonyctid |
| Crangonyx hobbsi | Shoemaker, 1941 | Hobbs Cave crangonyctid |
| Crangonyx minor | Bousfield, 1958 | Small stream crangonyctid |
| Crangonyx obliquus | (Hubricht & Mackin, 1940) | Oblique-hand crangonyctid |
| Crangonyx packardi | Smith, 1888 | Packard Cave crangonyctid |
| Crangonyx pseudogracilis | Bousfield, 1958 | Northern River crangonyctid |
| Crangonyx rivularis | Bousfield, 1958 | Ontario stream crangonyctid |
| Crangonyx serratus | (Embody, 1911) | Serrate crangonyctid |
| Crangonyx setodactylus | Bousfield, 1958 | Hairy-fingered crangonyctid |
| Crangonyx shoemakeri | (Hubricht & Mackin, 1940) | Shoemaker crangonyctid |
| Stygobromus hoffmani | Holsinger, 1978 | Allegheny stygobromid |
| Stygobromus holsingeri | Ward, 1977 | Holsinger's groundwater amphipod |
| Stygobromus hubbsi | Shoemaker, 1942 | Malheur cave stygobromid |
| Stygobromus indentatus | (Holsinger, 1967) | Tidewater stygonectid amphipod |
| Stygobromus inexpectatus | Holsinger, 1978 | Meadows cave stygobromid |
| Stygobromus interitus | Holsinger, 1978 | New Castle murder hole amphipod |
| Stygobromus kenki | Holsinger, 1978 | Rock creek stygobromid |
| Stygobromus lacicolus | Holsinger, 1974 | Deep lake stygobromid |
| Stygobromus leensis | Holsinger, 1978 | Lee stygobromid |
| Stygobromus longipes | (Holsinger, 1966) | Long-legged cave stygobromid |
| Stygobromus lucifugus | (Hay, 1882) | Photophobic stygobromid |
| Stygobromus mackenziei | Holsinger, 1974 | McKenzie stygobromid |
| Stygobromus mackini | Hubricht, 1943 | Southwestern Virginia cave amphipod |
| Stygobromus minutus | Holsinger, 1978 | Pettijohn cave stygobromid |
| Stygobromus montanensis | Holsinger, 1974 | Montana stygobromid |
| Stygobromus montanus | (Holsinger, 1967) | Rich mountain stygobromid |
| Stygobromus morrisoni | (Holsinger, 1967) | Morrison's cave amphipod |
| Stygobromus mundus | (Holsinger, 1967) | Bath stygobromid |
| Stygobromus mysticus | Holsinger, 1974 | Northern California stygobromid |
| Stygobromus nanus | Holsinger, 1978 | Piddling pit stygobromid |
| Stygobromus nortoni | (Holsinger, 1969) | Norton's cave amphipod |
| Stygobromus obrutus | Holsinger, 1978 | Pittsylvania well amphipod |
| Stygobromus obscurus | Holsinger, 1974 | Unknown stygobromid |
| Stygobromus onondagaensis | (Hubricht & Mackin, 1940) | Onondaga cave stygobromid |
| Stygobromus oregonensis | Holsinger, 1974 | Oregon stygobromid |
| Stygobromus ozarkensis | (Holsinger, 1967) | Ozark cave stygobromid |
| Stygobromus parvus | (Holsinger, 1969) | Minute stygobromid |
| Stygobromus pecki | (Holsinger, 1967) | Peck's cave amphipod |
| Stygobromus pennaki | Ward, 1977 | Pennak's groundwater amphipod |
| Stygobromus phreaticus | Holsinger, 1978 | Northern Virginia well amphipod |
| Stygobromus pizzinii | (Shoemaker, 1938) | Pizzini's amphipod |
| Stygobromus pollostus | Holsinger, 1978 | Least cave stygobromid |
| Stygobromus pseudospinosus | Holsinger, 1978 | Luray caverns stygobromid |
| Stygobromus putealis | (Holmes, 1909) | Wisconsin well stygobromid |
| Stygobromus puteanus | Holsinger, 1974 | Montana well amphipod |
| Stygobromus abditus | Holsinger, 1978 | James cave amphipod |
| Stygobromus ackerlyi | Holsinger, 1978 | Ackerly's cave amphipod |
| Stygobromus allegheniensis | (Holsinger, 1967) | Allegheny cave stygobromid |
| Stygobromus araeus | (Holsinger, 1969) | Tidewater stygobromid |
| Stygobromus arizonensis | Holsinger, 1974 | Arizona cave stygobromid |
| Stygobromus balconis | (Hubricht, 1943) | Balcones cave stygobromid |
| Stygobromus baroodyi | Holsinger, 1978 | Rockbridge stygobromid |
| Stygobromus barri | (Holsinger, 1967) | Barr's cave amphipod |
| Stygobromus barryi | Holsinger, 1978 | Blankenship cave stygobromid |
| Stygobromus bifurcatus | (Holsinger, 1967) | Bifurcated stygobromid |
| Stygobromus biggersi | Holsinger, 1978 | Biggers cave stygobromid |
| Stygobromus borealis | Holsinger, 1978 | New England stygobromid |
| Stygobromus bowmani | (Holsinger, 1967) | Bowman's cave amphipod |
| Stygobromus canadensis | Holsinger, 1980 | Castleguard cave stygobromid |
| Stygobromus carolinensis | Holsinger, 1978 | Carolina stygobromid |
| Stygobromus clantoni | (Creaser, 1934) | Clanton's cave amphipod |
| Stygobromus coloradensis | Ward, 1977 | Colorado stygobromid |
| Stygobromus conradi | (Holsinger, 1967) | Burnsville cove stygobromid |
| Stygobromus cooperi | (Holsinger, 1967) | Cooper's cave amphipod |
| Stygobromus culveri | Holsinger, 1978 | Culver's cave amphipod |
| Stygobromus cumberlandus | Holsinger, 1978 | Cumberland stygobromid |
| Stygobromus dejectus | (Holsinger, 1967) | Cascade cave stygobromid |
| Stygobromus dicksoni | Holsinger, 1978 | Dickson's cave amphipod |
| Stygobromus elatus | (Holsinger, 1967) | Proud stygobromid |
| Stygobromus elliotti | Holsinger, 1974 | Washington lava cave amphipod |
| Stygobromus emarginatus | (Hubricht, 1943) | Greenbrier cave stygobromid |
| Stygobromus ephemerus | (Holsinger, 1969) | Ephemeral cave stygobromid |
| Stygobromus estesi | Holsinger, 1978 | Craig stygobromid |
| Stygobromus exilis | Hubricht, 1943 | Central kentucky stygobromid |
| Stygobromus fecundus | Holsinger, 1978 | Cades cove cave stygobromid |
| Stygobromus fergusoni | Holsinger, 1978 | Montgomery stygobromid |
| Stygobromus finleyi | Holsinger, 1978 | English cave stygobromid |
| Stygobromus flagellatus | (Benedict, 1896) | Ezells cave stygobromid |
| Stygobromus franzi | Holsinger, 1978 | Franz's cave amphipod |
| Stygobromus gracilipes | (Holsinger, 1967) | Shenandoah valley stygobromid |
| Stygobromus gradyi | Holsinger, 1974 | Grady's cave amphipod |
| Stygobromus grahami | Holsinger, 1974 | Graham's cave amphipod |
| Stygobromus grandis | Holsinger, 1978 | Parker cave stygobromid |
| Stygobromus hadenoecus | (Holsinger, 1966) | Devils sinkhole stygobromid |
| Stygobromus harai | Holsinger, 1974 | Hara's cave amphipod |
| Stygobromus hayi | (Hubricht & Mackin, 1940) | Hay's spring amphipod |
| Stygobromus heteropodus | Hubricht, 1943 | Pickle springs stygobromid |
| Stygobromus quatsinensis | Holsinger & Shaw, 1987 | Vancouver stygobromid |
| Stygobromus redactus | Holsinger, 1978 | Patton cave stygobromid |
| Stygobromus reddelli | (Holsinger, 1966) | Reddell's cave amphipod |
| Stygobromus russelli | (Holsinger, 1967) | Russell's cave amphipod |
| Stygobromus secundus | Bousfield & Holsinger, 1981 | Cordilleran stygobromid |
| Stygobromus sheldoni | Holsinger, 1974 | Sheldon's spring amphipod |
| Stygobromus sierrensis | Holsinger, 1974 | Sierra stygobromid |
| Stygobromus smithi | Hubricht, 1943 | Alabama well stygobromid |
| Stygobromus sparsus | Holsinger, 1978 | Gregorys cave amphipod |
| Stygobromus spinatus | (Holsinger, 1967) | Spring cave amphipod |
| Stygobromus spinosus | (Hubricht & Mackin, 1940) | Blue ridge stygobromid |
| Stygobromus stegerorum | Holsinger, 1978 | Madison cave stygobromid |
| Stygobromus stellmacki | (Holsinger, 1967) | Stellmack's cave amphipod |
| Stygobromus subtilis | (Hubricht, 1943) | Subtle stygobromid |
| Stygobromus tahoensis | Holsinger, 1974 | Lake tahoe stygobromid |
| Stygobromus tritus | Holsinger, 1974 | Worn stygobromid |
| Stygobromus vitreus | Cope, 1872 | Mammoth cave stygobromid |
| Stygobromus wengerorum | Holsinger, 1974 | Wenger's cave amphipod |
| Synurella johanseni | Shoemaker, 1920 |