Farfantepenaeus duorarum is a species of marine penaeid shrimp found around Bermuda, along the east coast of the United States and in the Gulf of Mexico. They are a significant commercial species in the United States and Cuba.

Distribution Farfantepenaeus duorarum are found in the Atlantic around Bermuda, along the coast of the United States from Massachusetts to Texas, and along the Mexican coast from Tamaulipas to Campeche. They live at depths of 2–70 metres (7–230 ft), exceptionally to 230 m (750 ft), with highest densities at 11–36 m (36–118 ft), on compacted mud, silt or sandy bottoms, or amongst shells. Juveniles are found in marine or estuarine waters, while adults are marine.

Description Females grow up to 280 mm (11 in) long, and males 269 mm (10.6 in) long.

Taxonomy Farfantepenaeus duorarum was first described by Martin Burkenroad in 1939, under the name Penaeus duorarum. In 1967, Isabel Pérez Farfante separated P. duorarum into two subspecies: northern P. d. duorarum and southern P. d. notialis, where notialis is Latin for 'southern'.