Immature. Shell is about 3 cm across. On coarse-sand shore of large bay.
dead
Shallow trawl, south Mobile Bay, AL.
Shallow trawl, just south oh Dauphin Island AL.
Shallow trawl just s. of Dauphin Island AL.
Males have distinctive turquoise flash on their heads. In a brackish roadside ditch, Dauphin Island AL.