Alpheus heterochaelis Say, 1818 (original description)
Alpheus minus Say, 1818 accepted as Synalpheus minus (Say, 1818) (original description)
Ampithoe dentata Say, 1818 accepted as Crangonyx serratus (Embody, 1911) (original description)
Ampithoe punctata Say, 1818 (original description)
Ampithoe serrata Say, 1818 accepted as Acanthonotus sayi Spence Bate, 1863 (original description)
Callianassa major Say, 1818 accepted as Callichirus major (Say, 1818) (original description)
Cancer granulatus Say, 1817 accepted as Carcinus maenas (Linnaeus, 1758) (original description)
Cancer irroratus Say, 1817 (original description)
Caprella equilibra Say, 1818 (original description)
Caprella geometrica Say, 1818 accepted as Caprella penantis Leach, 1814 (original description)
Cerapus Say, 1817 (original description)
Cerapus tubularis Say, 1817 (original description)
Crangon septemspinosus Say, 1818 accepted as Crangon septemspinosa Say, 1818 (original description)
Cyamus abbreviatus Say, 1818 (original description)
Cymothoa ovalis Say, 1818 accepted as Livoneca ovalis (Say, 1818) (original description)
Diastylis Say, 1818 (original description)
Gammarus appendiculatus Say, 1818 accepted as Dulichiella appendiculata (Say, 1818) (original description)
Gammarus fasciatus Say, 1818 (original description)
Gammarus minus Say, 1818 (original description)
Gammarus mucronatus Say, 1818 (original description)
Gebia affinis Say, 1818 accepted as Upogebia affinis (Say, 1818) (original description)
Lanceola Say, 1818 (original description)
Lanceola pelagica Say, 1818 accepted as Lanceola sayana Bovallius, 1885 (original description)
Lepidactylis Say, 1818 (original description)
Lepidactylis dytiscus Say, 1818 (original description)
Libinia canaliculata Say, 1817 accepted as Libinia emarginata Leach, 1815 (original description)
Lissa fssirostra Say, 1817 accepted as Hyas coarctatus Leach, 1815 (original description)
Naesa ovalis Say, 1818 accepted as Cassidinidea ovalis (Say, 1818) (original description)
Ocypode arenarius Say, 1817 accepted as Ocypode quadrata (Fabricius, 1787) (original description)
Ocypode reticulatus Say, 1817 accepted as Sesarma reticulatum (Say, 1817) (original description)
Palaemon tenuicornis Say, 1818 accepted as Leander tenuicornis (Say, 1818) (original description)
Palaemon vulgaris Say, 1818 (original description)
Penaeus fluviatilis Say, 1818 accepted as Penaeus setiferus (Linnaeus, 1767) (original description)
Pinnotheres depressum Say, 1817 accepted as Zaops ostreus (Say, 1817) accepted as Zaops ostreum (Say, 1817) (original description)
Pinnotheres Ostreum Say, 1817 accepted as Zaops ostreus (Say, 1817) accepted as Zaops ostreum (Say, 1817) (original description)
Podocerus cylindricus Say, 1818 accepted as Corophium cylindricum (Say, 1818) accepted as Monocorophium cylindricum (Say, 1818) (original description)
Portunus pictus Say, 1817 accepted as Ovalipes ocellatus (Herbst, 1799) (original description)
Sesarma Say, 1817 (original description)
Talitrus longicornis Say, 1817 accepted as Americorchestia longicornis (Say, 1818) (original description)
Uca citharoedicus Say, 1817 accepted as Leptuca pugilator (Bosc, 1801) (basis of record)
Uca citharoedicus Say, 1817 accepted as Leptuca pugilator (Bosc, 1801) (original description)
Unciola Say, 1818 (original description)
Unciola irrorata Say, 1818 (original description)

United States Exclusive Economic Zone for Carcinus maenas (Linnaeus, 1758)  (origin: alien)