| Nominal Species (n = 103) | Present allocation (n = 103) | Ref. |
|---|---|---|
| Stygobromus abditus Holsinger, 1978 | Stygobromus abditus | 19 |
| Crangonyx aberrans Smith, 1983 | Crangonyx aberrans | 19 |
| Stygobromus ackerlyi Holsinger, 1978 | Stygobromus ackerlyi | 19 |
| Stygonectes allegheniensis Holsinger, 1967 | Stygobromus allegheniensis | 75097 |
| Crangonyx alpinus Bousfield, 1963 | Crangonyx alpinus | 19 |
| Crangonyx anomalus Hubricht, 1943 | Crangonyx anomalus | 19 |
| Crangonyx antennatus Cope & Packard, 1881 | Crangonyx antennatus | 19 |
| Apocrangonyx araeus Holsinger, 1969 | Stygobromus araeus | 75097 |
| Stygobromus arizonensis Holsinger, 1974 | Stygobromus arizonensis | 19 |
| Stygonectes balconis Hubricht, 1943 | Stygobromus balconis | 75097 |
| Stygobromus baroodyi Holsinger, 1978 | Stygobromus baroodyi | 19 |
| Stygonectes barri Holsinger, 1967 | Stygobromus barri | 75097 |
| Stygobromus barryi Holsinger, 1978 | Stygobromus barryi | 19 |
| Stygonectes bifurcatus Holsinger, 1967 | Stygobromus bifurcatus | 75097 |
| Stygobromus biggersi Holsinger, 1978 | Stygobromus biggersi | 19 |
| Stygobromus borealis Holsinger, 1978 | Stygobromus borealis | 19 |
| Stygonectes bowmani Holsinger, 1967 | Stygobromus bowmani | 75097 |
| Bactrurus brachycaudus Hubricht & Mackin, 1940 | Bactrurus brachycaudus | 19 |
| Stygobromus canadensis Holsinger, 1980 | Stygobromus canadensis | 19 |
| Stygobromus carolinensis Holsinger, 1978 | Stygobromus carolinensis | 19 |
| Synpleonia clantoni Creaser, 1934 | Stygobromus clantoni | 75097 |
| Stygobromus coloradensis Ward, 1977 | Stygobromus coloradensis | 19 |
| Stygonectes conradi Holsinger, 1967 | Stygobromus conradi | 75097 |
| Stygonectes cooperi Holsinger, 1967 | Stygobromus cooperi | 75097 |
| Stygobromus culveri Holsinger, 1978 | Stygobromus culveri | 19 |
| Stygobromus cumberlandus Holsinger, 1978 | Stygobromus cumberlandus | 19 |
| Crangonyx dearolfi Shoemaker, 1942 | Crangonyx dearolfi | 19 |
| Stygonectes dejectus Holsinger, 1967 | Stygobromus dejectus | 75097 |
| Stygobromus dicksoni Holsinger, 1978 | Stygobromus dicksoni | 19 |
| Stygonectes elatus Holsinger, 1967 | Stygobromus elatus | 75097 |
| Stygobromus elliotti Holsinger, 1974 | Stygobromus elliotti | 19 |
| Apocrangonyx ephemerus Holsinger, 1969 | Stygobromus ephemerus | 75097 |
| Stygobromus estesi Holsinger, 1978 | Stygobromus estesi | 19 |
| Stygobromus exilis Hubricht, 1943 | Stygobromus exilis | 19 |
| Stygobromus fecundus Holsinger, 1978 | Stygobromus fecundus | 19 |
| Stygobromus fergusoni Holsinger, 1978 | Stygobromus fergusoni | 19 |
| Stygobromus finleyi Holsinger, 1978 | Stygobromus finleyi | 19 |
| Crangonyx floridanus Bousfield, 1963 | Crangonyx floridanus | 19 |
| Stygobromus franzi Holsinger, 1978 | Stygobromus franzi | 19 |
| Stygonectes gracilipes Holsinger, 1967 | Stygobromus gracilipes | 75097 |
| Crangonyx gracilis Smith, 1871 | Crangonyx gracilis | 19 |
| Stygobromus gradyi Holsinger, 1974 | Stygobromus gradyi | 19 |
| Stygobromus grahami Holsinger, 1974 | Stygobromus grahami | 19 |
| Crangonyx grandimanus Bousfield, 1963 | Crangonyx grandimanus | 19 |
| Stygobromus grandis Holsinger, 1978 | Stygobromus grandis | 19 |
| Stygonectes hadenoecus Holsinger, 1966 | Stygobromus hadenoecus | 75097 |
| Stygobromus harai Holsinger, 1974 | Stygobromus harai | 19 |
| Stygobromus heteropodus Hubricht, 1943 | Stygobromus heteropodus | 19 |
| Crangonyx hobbsi Shoemaker, 1941 | Crangonyx hobbsi | 19 |
| Stygobromus hoffmani Holsinger, 1978 | Stygobromus hoffmani | 19 |
| Stygobromus holsingeri Ward, 1977 | Stygobromus holsingeri | 19 |
| Stygobromus hubbsi Shoemaker, 1942 | Stygobromus hubbsi | 19 |
| Bactrurus hubrichti Shoemaker, 1945 | Bactrurus hubrichti | 19 |
| Stygonectes indentatus Holsinger, 1967 | Stygobromus indentatus | 75097 |
| Stygobromus inexpectatus Holsinger, 1978 | Stygobromus inexpectatus | 19 |
| Stygobromus interitus Holsinger, 1978 | Stygobromus interitus | 19 |
| Synurella johanseni Shoemaker, 1920 | Synurella johanseni | 19 |
| Stygobromus kenki Holsinger, 1978 | Stygobromus kenki | 19 |
| Stygobromus lacicolus Holsinger, 1974 | Stygobromus lacicolus | 19 |
| Stygobromus leensis Holsinger, 1978 | Stygobromus leensis | 19 |
| Stygonectes longipes Holsinger, 1966 | Stygobromus longipes | 75097 |
| Stygobromus mackenziei Holsinger, 1974 | Stygobromus mackenziei | 19 |
| Stygobromus mackini Hubricht, 1943 | Stygobromus mackini | 19 |
| Crangonyx minor Bousfield, 1958 | Crangonyx minor | 19 |
| Stygobromus minutus Holsinger, 1978 | Stygobromus minutus | 19 |
| Stygobromus montanensis Holsinger, 1974 | Stygobromus montanensis | 19 |
| Stygonectes montanus Holsinger, 1967 | Stygobromus montanus | 75097 |
| Stygonectes morrisoni Holsinger, 1967 | Stygobromus morrisoni | 75097 |
| Stygonectes mundus Holsinger, 1967 | Stygobromus mundus | 75097 |
| Stygobromus mysticus Holsinger, 1974 | Stygobromus mysticus | 19 |
| Stygobromus nanus Holsinger, 1978 | Stygobromus nanus | 19 |
| Apocrangonyx nortoni Holsinger, 1969 | Stygobromus nortoni | 75097 |
| Stygobromus obrutus Holsinger, 1978 | Stygobromus obrutus | 19 |
| Stygobromus obscurus Holsinger, 1974 | Stygobromus obscurus | 19 |
| Stygobromus oregonensis Holsinger, 1974 | Stygobromus oregonensis | 19 |
| Stygonectes ozarkensis Holsinger, 1967 | Stygobromus ozarkensis | 75097 |
| Crangonyx packardi Smith, 1888 | Crangonyx packardi | 19 |
| Apocrangonyx parvus Holsinger, 1969 | Stygobromus parvus | 75097 |
| Stygonectes pecki Holsinger, 1967 | Stygobromus pecki | 75097 |
| Stygobromus pennaki Ward, 1977 | Stygobromus pennaki | 19 |
| Stygobromus phreaticus Holsinger, 1978 | Stygobromus phreaticus | 19 |
| Stygobromus pollostus Holsinger, 1978 | Stygobromus pollostus | 19 |
| Crangonyx pseudogracilis Bousfield, 1958 | Crangonyx pseudogracilis | 19 |
| Stygobromus pseudospinosus Holsinger, 1978 | Stygobromus pseudospinosus | 19 |
| Stygobromus puteanus Holsinger, 1974 | Stygobromus puteanus | 19 |
| Stygobromus quatsinensis Holsinger & Shaw, 1987 | Stygobromus quatsinensis | 19 |
| Stygobromus redactus Holsinger, 1978 | Stygobromus redactus | 19 |
| Stygonectes reddelli Holsinger, 1966 | Stygobromus reddelli | 75097 |
| Crangonyx rivularis Bousfield, 1958 | Crangonyx rivularis | 19 |
| Stygonectes russelli Holsinger, 1967 | Stygobromus russelli | 75097 |
| Stygobromus secundus Bousfield & Holsinger, 1981 | Stygobromus secundus | 19 |
| Crangonyx setodactylus Bousfield, 1958 | Crangonyx setodactylus | 19 |
| Stygobromus sheldoni Holsinger, 1974 | Stygobromus sheldoni | 19 |
| Stygobromus sierrensis Holsinger, 1974 | Stygobromus sierrensis | 19 |
| Stygobromus smithi Hubricht, 1943 | Stygobromus smithi | 19 |
| Stygobromus sparsus Holsinger, 1978 | Stygobromus sparsus | 19 |
| Stygobromus stegerorum Holsinger, 1978 | Stygobromus stegerorum | 19 |
| Stygonectes stellmacki Holsinger, 1967 | Stygobromus stellmacki | 75097 |
| Apocrangonyx subtilis Hubricht, 1943 | Stygobromus subtilis | 75097 |
| Stygobromus tahoensis Holsinger, 1974 | Stygobromus tahoensis | 19 |
| Stygobromus tritus Holsinger, 1974 | Stygobromus tritus | 19 |
| Stygobromus vitreus Cope, 1872 | Stygobromus vitreus | 19 |
| Stygobromus wengerorum Holsinger, 1974 | Stygobromus wengerorum | 19 |