NMITA: Neogene Marine Biota of Tropical America

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IV. Subgenus Dorsina Jung, 1989.

Morphologic Description: protoconch 2 1/2 to 3 1/2 volutions; outer lip protoconch sigmoid or sinusigerous; sculpture on early teleoconch absent; sculpture on late teleoconch absent; dorsal hump weak to prominent; hump to the left of aperture well developed; posterior canal weak; thickness outer lip moderate; outer lip slightly extended adapically; small angle between axis of columella and main shell axis.

• S.(D.) caribaea (Gabb, 1873).
• S.(D.) colombiana (Weisbord, 1929).
• S.(D.) dorsata (G.B.Sowerby I, 1832)
• S.(D.) gibberula (G.B.Sowerby I, 1832)
• S.(D.) melajoensis (Jung, 1969)
• S.(D.) pigea (Olsson, 1964)
• S.(D.) pigea ? (Olsson, 1964)
• S.(D.) quirosana (H.K.Hodson, 1931)
• S.(D.) ? lampra (Gardner, 1947)

Return to taxonomic listing of subgenera for Sincola.