| Allocrangonyx hubrichti Holsinger, 1971 | Central Missouri cave amphipod |
| Allocrangonyx pellucidus Mackin, 1935 | Oklahoma cave amphipod |
| Alpheus dolerus Banner, 1956 | |
| Apanthura isotoma Poore & Lew Ton, 1985 | |
| Armadillidium nasatum Budde-Lund, 1885 | Isopod |
| Armadillidium vulgare Latreille, 1804 | Carpenter |
| Bactrurus pseudomucronatus Koenemann & ..., 2000 | False sword-tailed cave amphipod |
| Bactrurus speleopolis Holsinger, S..., 2006 | |
| Bathybadistes hoplitis Hessler & Th..., 1975 | |
| Bathygnathia tapinoma Cohen & Poore, 1994 | |
| Bouchardina robisoni Hobbs, 1977 | Bayou Bodcau Crayfish |
| Caecidotea ancyla Fleming, 1972 | |
| Caecidotea antricola Creaser, 1931 | Cave isopod |
| Caecidotea brevicauda Forbes, 1876 | |
| Caecidotea communis (Say, 1818) | ⇒ Conasellus communis Say, 1818 |
| Caecidotea dentadactyla Mackin & Hub..., 1938 | |
| Caecidotea dimorpha Mackin & Hub..., 1940 | Missouri cave isopod |
| Caecidotea fonticulus Lewis, 1983 | |
| Caecidotea forbesi Williams, 1970 | |
| Caecidotea foxi Fleming, 1973 | |
| Caecidotea holti Fleming, 1973 | |
| Caecidotea intermedia Forbes, 1876 | |
| Caecidotea kenki Bowman, 1967 | |
| Caecidotea laticaudata Williams, 1970 | |
| Caecidotea macropropoda Chase & Blair, 1937 | Bat cave isopod |
| Caecidotea montana Mackin & Hub..., 1938 | |
| Caecidotea nickajackensis Packard, 1881 | Nickajack Cave isopod |
| Caecidotea obtusa Williams, 1970 | |
| Caecidotea oculata Mackin & Hub..., 1940 | Salt cedar |
| Caecidotea racovitzai Williams, 1970 | Racovitza'S Waterslater |
| Caecidotea salemensis Lewis, 1981 | Salem cave isopod |
| Caecidotea simulator Lewis, 1999 | |
| Caecidotea steevesi Fleming, 1972 | |
| Caecidotea stiladactyla Mackin & Hub..., 1940 | Salt cedar |
| Caecidotea tridentata Hungerford, 1922 | Ajo oak |
| Caecognathia dolichoderus Cohen & Poore, 1994 | |
| Callianassa hulli Rathbun, 1935 | |
| Callinectes sapidus Rathbun, 1896 | American blue crab |
| Cambarellus (Dirigicambarus) shufeldtii Faxon, 1884 | Cajun dwarf crayfish |
| Cambarellus (Pandicambarus) puer Hobbs, 1941 | Swamp dwarf crayfish |
| Cambarus (Cambarus) bartonii Fabricius, 1798 | Appalachian brook crayfish |
| Cambarus (Cambarus) lenati J. E. Cooper, 2000 | Broad River crayfish |
| Cambarus (Depressicambarus) catagius Hobbs & Perkins, 1967 | Greensboro burrowing crayfish |
| Cambarus (Depressicambarus) striatus Hay, 1902 | Ambiguous Crayfish |
| Cambarus (Erebicambarus) hubbsi Creaser, 1931 | Hubb's crayfish |
| Cambarus (Erebicambarus) rusticiformis Rhoades, 1944 | Depression crayfish |
| Cambarus (Jugicambarus) aculabrum Hobbs & Brown, 1987 | Benton cave crayfish |
| Cambarus (Jugicambarus) causeyi Reimer, 1966 | Boston Mountains Crayfish |
| Cambarus (Jugicambarus) dubius Faxon, 1884 | Upland burrowing crayfish |
| Cambarus (Jugicambarus) zophonastes Hobbs & Bedi..., 1964 | Cave crayfish |
| Cambarus (Lacunicambarus) diogenes Girard, 1852 | Chimney crayfish |
| Cambarus (Lacunicambarus) ludovicianus Faxon, 1884 | Painted devil crayfish |
| Cambarus (Puncticambarus) acuminatus Faxon, 1884 | Acuminate Crayfish |
| Cambarus (Puncticambarus) johni Cooper, 2006 | Carolina Foothills Crayfish |
| Cambarus (Puncticambarus) theepiensis Loughman, Fo..., 2013 | Coalfields Crayfish |
| Cambarus faxonii Meek, 1894 | |
| Conasellus communis Say, 1818 | |
| Crangonyx aka Zhang & Hols..., 2003 | |
| Crangonyx floridanus Bousfield, 1963 | Florida crangonyctid |
| Crangonyx gracilis S.I. Smith, 1871 | Northern lake crangonyctid |
| Crangonyx minor Bousfield, 1958 | Minor cave amphipod |
| Crangonyx obliquus (Hubricht & M..., 1940) | ⇒ Crangonyx occidentalis Hubricht & H..., 1941 |
| Crangonyx pseudogracilis Bousfield, 1958 | Northern river crangonyctid |
| Creaserinus gilpini Hobbs & Robison, 1989 | Jefferson County crayfish |
| Cylisticus convexus De Geer, 1778 | Curly Woodlouse |
| Cymothoa gerris Schioedte & ..., 1884 | |
| Fallicambarus (Creaserinus) caesius Hobbs, 1975 | Timberlands Burrowing Crayfish |
| Fallicambarus (Creaserinus) fodiens Cottle, 1863 | Digger crayfish |
| Fallicambarus (Creaserinus) gilpini Hobbs & Robison, 1989 | Jefferson County crayfish |
| Fallicambarus (Creaserinus) hedgpethi Hobbs, 1948 | |
| Fallicambarus (Fallicambarus) dissitus Penn, 1955 | Pine Hills Digger |
| Fallicambarus (Fallicambarus) harpi Hobbs & Robison, 1985 | Ouachita burrowing crayfish |
| Fallicambarus (Fallicambarus) jeanae Hobbs, 1973 | Daisy Burrowing Crayfish |
| Fallicambarus (Fallicambarus) petilicarpus Hobbs & Robison, 1989 | Slenderwrist burrowing crayfish |
| Fallicambarus (Fallicambarus) schusteri Taylor & Rob..., 2016 | Carmel Crayfish |
| Fallicambarus (Fallicambarus) strawni Reimer, 1966 | Saline burrowing crayfish |
| Fallicambarus spectrum Hobbs, 1973 | |
| Faxonella blairi Hayes & Reimer, 1977 | Blair's fencing crayfish |
| Faxonella clypeata Hay, 1899 | Ditch fencing crayfish |
| Faxonella creaseri Walls, 1968 | Ouachita Fencing Crayfish |
| Faxonius eupunctus Williams, 1952 | Coldwater crayfish |
| Faxonius nana Williams, 1952 | Midget Crayfish |
| Faxonius ozarkae Williams, 1952 | Ozark Crayfish |
| Faxonius roberti Fetzner Jr. ..., 2018 | Spring river crayfish |
| Faxonius wagneri Fetzner Jr. ..., 2018 | Eleven Point river crayfish |
| Gammarus elki Shoemaker, 1940 | |
| Gammarus fasciatus Say, 1818 | |
| Gammarus minus Say, 1818 | |
| Gammarus pseudolimnaeus Bousfield, 1958 | |
| Gnathia camponotus Cohen & Poore, 1994 | |
| Gnathia iridomyrmex Cohen & Poore, 1994 | |
| Hobbseus cristatus Hobbs, 1955 | Crested Riverlet Crayfish |
| Hobbseus prominens Hobbs, 1966 | Prominence Riverlet Crayfish |
| Hyalella azteca Saussure, 1858 | Mexican Freshwater Shrimp |
| Leptostenus leptocerus leptocerus Dybowsky, 1874 | |
| Ligidium elrodii Packard, 1873 | Lehua |
| Lirceus bicuspidatus Hubricht & M..., 1949 | |
| Lirceus bidentatus Hubricht & M..., 1949 | |
| Lirceus garmani Hubricht & M..., 1949 | |
| Lirceus hoppinae Faxon, 1889 | |
| Lirceus hoppinae hoppinae Faxon, 1889 | |
| Lirceus lineatus Say, 1818 | |
| Lirceus louisianae Mackin & Hub..., 1938 | |
| Litopenaeus setiferus Linnaeus, 1767 | Atlantic white shrimp |
| Livoneca ovalis (Say, 1818) | ⇒ Livoneca redmanii Leach, 1818 |
| Lysianassa ceratina (Walker, 1889) | ⇒ Lysianassa caesarea Ruffo, 1987 |
| Macrobrachium ohione Leach, 1815 | Ohio River shrimp |
| Monodgnathia ponera Cohen & Poore, 1994 | |
| Oniscus asellus asellus Linnaeus, 1758 | |
| Orconectes (Buannulifictus) meeki Williams, 1952 | Meek crayfish |
| Orconectes (Buannulifictus) palmeri Creaser, 1933 | Creole Painted Crayfish |
| Orconectes (Crockerinus) eupunctus A. B. Williams, 1952 | Coldwater crayfish |
| Orconectes (Crockerinus) marchandi Hobbs, 1948 | Mammoth Spring crayfish |
| Orconectes (Crockerinus) propinquus Girard, 1852 | Northern clearwater crayfish |
| Orconectes (Gremicambarus) causeyi Jester, 1967 | Western plains crayfish |
| Orconectes (Gremicambarus) compressus Faxon, 1884 | Slender crayfish |
| Orconectes (Gremicambarus) nais Faxon, 1885 | Water nymph crayfish |
| Orconectes (Gremicambarus) virilis Hagen, 1870 | Common Crawfish |
| Orconectes (Hespericambarus) difficilis Faxon, 1898 | Painted crayfish |
| Orconectes (Orconectes) pellucidus Tellkampf, 1844 | Mammoth Cave crayfish |
| Orconectes (Procericambarus) acares Fitzpatrick, 1965 | Redspotted stream crayfish |
| Orconectes (Procericambarus) hylas Faxon, 1890 | Woodland crayfish |
| Orconectes (Procericambarus) leptogonopodus Hobbs, 1948 | Little River Creek crayfish |
| Orconectes (Procericambarus) longidigitus Faxon, 1898 | Longpincered crayfish |
| Orconectes (Procericambarus) luteus Creaser, 1933 | Golden crayfish |
| Orconectes (Procericambarus) macrus A. B. Williams, 1952 | Neosho midget crayfish |
| Orconectes (Procericambarus) menae Creaser, 1933 | Mena crayfish |
| Orconectes (Procericambarus) nana A. B. Williams, 1952 | Midget crayfish |
| Orconectes (Procericambarus) neglectus Williams, 1952 | Gap Ringed Crayfish |
| Orconectes (Procericambarus) ozarkae A. B. Williams, 1952 | Ozark crayfish |
| Orconectes (Procericambarus) placidus Hagen, 1870 | Bigclaw crayfish |
| Orconectes (Procericambarus) punctimanus Creaser, 1933 | Spothand crayfish |
| Orconectes (Procericambarus) putnami Faxon, 1884 | Phallic crayfish |
| Orconectes (Procericambarus) quadruncus Creaser, 1933 | St. Francis River crayfish |
| Orconectes (Procericambarus) rusticus Girard, 1852 | Rusty crayfish |
| Orconectes (Procericambarus) williamsi Fitzpatrick, 1966 | Williams crayfish |
| Orconectes (Tragulicambarus) lancifer Hagen, 1870 | Shrimp crayfish |
| Orconectes (Trisellescens) chickasawae Cooper & Hobbs, 1980 | Chickasaw crayfish |
| Orconectes (Trisellescens) immunis Hagen, 1870 | Calico crayfish |
| Padrycheles sculptus Milne-Edward..., 1837 | |
| Pagurus acadianus Benedict, 1901 | Acadian Hermit Crab |
| Palaemonetes kadiakensis Rathbun, 1902 | Mississippi grass shrimp |
| Porcellio laevis Latreille, 1804 | Dooryard sowbug |
| Porcellionides pruinosus Brandt, 1833 | Delicate slater |
| Procambarus (Capillicambarus) hinei Ortmann, 1905 | Marsh Crayfish |
| Procambarus (Girardiella) curdi Reimer, 1975 | Red River Burrowing Crayfish |
| Procambarus (Girardiella) ferrugineus Fitzpatrick, 1978 | Lonoke crayfish |
| Procambarus (Girardiella) liberorum Fitzpatrick, 1978 | Osage burrowing crayfish |
| Procambarus (Girardiella) parasimulans Hobbs & Robison, 1982 | Bismark Burrowin Crayfish |
| Procambarus (Girardiella) regalis Hobbs & Robison, 1988 | Regal Burrowing Crayfish |
| Procambarus (Girardiella) reimeri Hobbs, 1979 | Irons Fork Burrowing Crayfish |
| Procambarus (Girardiella) simulans Faxon, 1884 | Southern Plains Crayfish |
| Procambarus (Girardiella) tulanei Penn, 1953 | Giant Bearded Crayfish |
| Procambarus (Ortmannicus) acutus Girard, 1852 | White river crawfish |
| Procambarus (Ortmannicus) enoplosternum Hobbs, 1947 | Black Mottled Crayfish |
| Procambarus (Ortmannicus) geminus Hobbs, 1975 | Twin Crawfish |
| Procambarus (Ortmannicus) mancus Hobbs & Walton, 1957 | Lame Crayfish |
| Procambarus (Ortmannicus) viaeviridis Faxon, 1914 | Vernal crayfish |
| Procambarus (Pennides) ablusus Penn, 1963 | Hatchie River Crayfish |
| Procambarus (Pennides) dupratzi Penn, 1953 | Southwestern Creek Crayfish |
| Procambarus (Pennides) elegans Hobbs, 1969 | Elegant Creek Crayfish |
| Procambarus (Pennides) natchitochae Penn, 1953 | Red River Crayfish |
| Procambarus (Pennides) ouachitae Penn, 1956 | Ouachita River Crayfish |
| Procambarus (Pennides) vioscai Penn, 1946 | Burnham's blackberry |
| Procambarus (Scapulicambarus) clarkii Girard, 1852 | American crayfish |
| Procambarus (Tenuicambarus) tenuis Hobbs, 1950 | Ouachita Mountain Crayfish |
| Pseudoniphargus baetis Notenboom, 1988 | |
| Stygobromus clantoni Creaser, 1934 | Clanton stygobromid |
| Stygobromus elatus Holsinger, 1967 | Elevated spring amphipod |
| Stygobromus montanus Holsinger, 1967 | Mountain cave amphipod |
| Synurella bifurca Hay, 1882 | |
| Tanaissus danica Hansen, 1910 | |
| Tritella laevis Mayer, 1903 | |
