Buccinum nucleus Bruguière, 1789 accepted as Supplanaxis nucleus (Bruguière, 1789) (subsequent type designation)
Hinea nucleola (Mörch, 1876) (new combination reference)
Planaxis (Proplanaxis) Thiele, 1929 accepted as Planaxis (Supplanaxis) Thiele, 1929 accepted as Supplanaxis Thiele, 1929 (source of synonymy)
Planaxis semisulcatus G. B. Sowerby I, 1823 accepted as Supplanaxis nucleus (Bruguière, 1789) (subsequent type designation)
Planaxis semisulcatus G. B. Sowerby I, 1823 accepted as Supplanaxis nucleus (Bruguière, 1789) (source of synonymy)
Supplanaxis nancyae (Petuch, 2013) (basis of record)
Supplanaxis nucleus (Bruguière, 1789) (basis of record)
Supplanaxis obsoletus (Menke, 1851) (basis of record)
Supplanaxis planicostatus (G. B. Sowerby I, 1825) (basis of record)

Barbados for Buccinum nucleus Bruguière, 1789 
Haitian Exclusive Economic Zone for Planaxis (Supplanaxis) nancyae Petuch, 2013 
Virgin Islands for Hinea nucleola (Mörch, 1876) 

 Distribution

 for Supplanaxis nancyae (Petuch, 2013)

From Miami Beach, Florida, in the north, to the northern coast of South America, from Veracruz, Mexico in the west ... [details]

 Distribution

 for Supplanaxis nucleus (Bruguière, 1789)

From Palm Beach Inlet, Florida, in the north, to the northern coast of South America, from Veracruz, Mexico in the ... [details]