PLATE IV. 



Fig. 1. Antedon qotnduplicava, n. sp., 



Fig. 1. a. The isolated centro-dorsal, side view, 



b. Dorsal aspect of the same, .... 



c. Dorsal aspect of the radial pentagon, after removal of the 



rosette, ...... 



d. Ventral aspect of the centro-dorsal, 



Fig. 2. Antedon disciforms, n. sp., 



Fig. 2. a. The calyx from the side, .... 



b. The calyx from above, .... 



c. Dorsal aspect of the radial pentagon, 



d. Ventral aspect of the centro-dorsal, . 



Fig. 3. Antedon macronema, Mull., sp., 



Fig. 3. a. The calyx from the side, .... 



b. The calyx from above, .... 



c. Dorsal aspect of the radial pentagon and basal star, 



d. Ventral aspect of the centro-dorsal, 



Diam. Page 

 8 



263 

 262 



9 

 9 



13 



229 



9 



9 



25 



24 



6 



10 



Fig. 4. ACTINOMETRA MERIDIONALIS, Pourt., sp., 



Fig. 4. a. The calyx from the side, .... 



b. (a) Ventral and (yS) dorsal aspects of an isolated basal, 



c. The calyx from above, .... 



Fig. 5. ACTINOMETRA PULCHELLA, Pourt., sp. 



Fig. 5. a. (a) Ventral and (/3) dorsal aspects of an isolated basal, 



b. Dorsal aspect of an isolated radial with one basal attached, 



c. Side view of the radial pentagon with the basals attached, 



Fig. 6. ACTINOMETRA PAUCICIRRA, Bell. 



Fig. 6. a. Ventral aspect of the young centro-dorsal, . 



b. (a) Ventral and (/3) dorsal aspects of an isolated basal, 



x 

 x 



6 

 15 



10 



22 



