" Eucytherura sp. 9" Ayress, 1988 *: 626; pI. 22, figs 10- 12.

Dimensions. Adult right valve, MA/IP/427, length 0.29 mm, height 0.18 mm.

Diagnosis. A subrectangular species of Eucytherura with a somewhat bulbous posteroventral swelling which overreaches ventral margin. Short ridge anterodorsally and posterodorsally. Lateral surface coarsely reticulate, fossae well rounded, ventral surface microreticulate.

Comparisons. Although very similar to E. pacifica it can be distinguished from that species by its more rectangular lateral outline, its more irregular inflation and dorsal ridges. It is left in open nomenclature due to paucity of material.

Distribution. Late Pleistocene of eastern Australian continental shelf, Early Pleistocene of DSDP Site 209, Queensland Plateau, and Early Miocene of DSDP Site 593, Lord Howe Rise.