NMITA: Neogene Marine Biota of Tropical America

Strombina Morch, 1952

VI. Subgenus Costangula Jung, 1989.

Morphologic Description: protoconch 1 1/2 to 2 volutions; outer lip protoconch sinusigerous; sculpture on early teleoconch present; sculpture on late teleoconch prominent; axial sculpture predominant; parietal ridge weak; posterior canal moderate; thickness outer lip moderate; outer lip weakly extended adapically; anterior canal recurved; dorsal hump absent; hump to the left of aperture absent; body whorl angulated at periphery.


Return to Strombina genus description.