Plio-Pleistocene Peronella 
197 
Figure 3 Peronella ricta (Gregory, 1892) from the Middle Pleistocene Gladstone Member of the Carbla Oolite, near 
Gladstone Jetty, Shark Bay, Western Australia: A, WAM 96.208; B, WAM 1808; C, D, WAM 83.806; E, F, 
WAM 83.788; G, H, WAM 96.209; all xl.5. 
