Hemizyga decussata Yoo

PI. 16 figs 12-14

Hemizyga (Hemizyga) decussata Yoo, 1988: 246, figs 88- 9l.

Additional material. 10 specimens from ' Marohn' (Lbcality 28), and 10 specimens from various horizons at Glenbawn (Localities 29-31).

Geograpbic distribution. Glenbawn area.

Geological age. Late Tournaisian.

Remarks. An excellently preserved protoconch with reticulate ornamentation is illustrated by Yoo (1988: figs 89,90).