NMITA: Neogene Marine Biota of Tropical America

Strombina Morch, 1952

IV. Subgenus Arayina Jung, 1989.

Morphologic Description: protoconch 1 1/2 volutions; outer lip protoconch sigmoid; sculpture on early teleoconch present; keel on early teleoconch whorls present; sculpture on late teleoconch present; axial sculpture predominant on late teleoconch; spiral sculpture predominant on early teleoconch; parietal ridge absent; posterior canal weak; thickness outer lip strong; outer lip weakly extended adapically; anterior canal weakly recurved; dorsal hump absent or weak; hump to the left of aperture absent.


Return to Strombina genus description.