II. Subgenus Spiralta Jung, 1986.
Morphologic Description: protoconch 3 volutions; outer lip protoconch sinusigerous; sculpture on early teleoconch absent; sculpture on late teleoconch present; axial sculpture predominant; parietal ridge absent; posterior canal absent or weak; thickness outer lip moderate; outer lip not extended adapically; anterior canal weakly recurved; dorsal hump absent; hump to the left of aperture absent.
Species:Return to Strombina genus description.