Dyspanopeus sayi is a species of mud crab that is native to the Atlantic coast of North America. It has also become established outside its native range, living in Swansea Docks since 1960, the Mediterranean Sea since the 1970s, the North Sea since 2007 and the Black Sea since 2010. It can reach a carapace width of 20 mm (0.8 in), and has black tips to its unequal claws. It feeds on bivalves and barnacles, and is in turn eaten by predators including the Atlantic blue crab, Callinectes sapidus. Eggs are produced from spring to autumn, the offspring reach sexual maturity the following summer, and individuals can live for up to two years. The closest relative of D. sayi is D. texanus, which lives in the Gulf of Mexico; the two species differ in subtle features of the genitalia and the last pair of walking legs.
^Michael Türkay (2012). "Dyspanopeus sayi (Smith, 1869)". WoRMS. World Register of Marine Species. Retrieved February 9, 2012.
Dyspanopeussayi is a species of mud crab that is native to the Atlantic coast of North America. It has also become established outside its native range...
Dyspanopeus is a genus of crabs in the family Xanthoidea, comprising two species: Dyspanopeussayi (Smith, 1869) Dyspanopeus texanus (Stimpson, 1859) Both...
Dyspanopeus texanus (formerly Panopeus texanus or Neopanope texana) is a species of crab known as the Texas mud crab. Dyspanopeus texanus are an organism...
honored him by naming several taxa after him: Dyspanopeussayi (S. I. Smith, 1869) – Say's mud crab Portunus sayi (Gibbes, 1850) – a swimming crab of the family...
the flatback mud crab (Eurypanopeus depressus), the Say's mud crab (Dyspanopeussayi), the knotfinger mud crab (Panopeus lacustris), P. obessus, the furrowed...
Colletes perforator Smith, 1869 Cymadusa compta (S. I. Smith, 1873) Dyspanopeussayi (S. I. Smith, 1869) Elasmopus laevis S. I. Smith, 1873 Elasmopus levis...
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