(Cleve, 1900)
Dubious species. Conical to elongate bowl. Incipient to well-developed aboral horn. Delicate ribs generally showing a levogyrous torsion near the oral end.
Ref.: Brandt (1906-1907), Laackmann (1910), Souto (1979).
¥ var. cuspidata Brandt, 1906
Ref.: Brandt (1906-1907).
¥ var. indica Laackmann, 1910
Ref.: Laackmann (1910).
¥ var. valdestriata Brandt, 1906
Ref.: Brandt (1906-1907).