182 
JOAX 'M. Crockfokd. 
PLATE II. 
Figure 1, 2. FenesirelJina ruidacarinaia sp. nov. : Part of the celluliferous sur- 
face of the holotype (Xo. 2757Uj Fniv. of Western Australia), x 10 and x 20. 
Figure 3- FenestreUina columnaris sp. nov.: Part of the celluliferous surface of 
the holotype (No. 20949, Univ. of Western Australia), x 10. 
Figure 4. Polypora retificis sp. nov.: Part of the celluliferous surface of the 
holotype (Xo. 20951, Univ. of Western Australia), x 10. 
Figure 5. Polypora sp. nov.: Cast of the celluliferous surface (Xo. 20952a, 
University of Western Australia — colony on the lower half of the specimen), 
natural size. 
