THE CAINOZOIC CIDARIDAE OF AUSTRALIA. 
Fig. 7. Phyllacanthus duncani, sp. nov. Iamb zone ; Batesford ; Holotype 
(Reg. No. 13707) ; Nat. Mus., Mulder Coll. Nat. size. 
Fig. 8. P. duncani, sp. nov. Abactinal portion of iamb zone ; Batesford ; 
Paratype (Reg. No. 13706) ; Nat. Mus., coll. T. S. Hall, pres. F.A.C. 
Nat. size. 
Fig. 9. P. duncani, sp. nov. Large iamb zone ; Port Macdonnell ; Paratype 
(Reg. No. 13705) ; Nat. Mus., T. S. Hall Coll. Nat. size. 
Fig. 10. Prionocidaris scoparia, sp. nov. Abactinal view of test, showing 
spine ; Aldinga, lower beds ; Syntype ; Tate Coll. Nat. size. 
Fig. 11. P. scoparia, sp. nov. Iamb zone ; Knight’s Railway Siding Quarry, 
near Mount Gambier ; Syntype (Reg. No. 13709) ; Nat. Mus., pres, by 
the Mines Dept, of Victoria. Nat. size. 
Plate XIII. 
Fig. 12. Goniocidans prunispinosa Chapman and Cudmore. Spines ; Bal- 
combe Bay; 16 Paratypes (Reg. No. 13715) ; Nat. Mus., pres. F.A.C. 
x 2. 
Fig. 13. G. prunispinosa. Spine with cup-shaped apex ; Balcombe Bay. 
Paratype (Reg. No. 13714) ; Nat. Mus., pres. F.A.C. Nat. size. 
Fig. 14. G. prunispinosa. Ambital view of test, showing attached spines. 
Murray River Cliffs, Morgan, lower beds ; Holotype (Reg. No. 13174) ; 
Nat. Mus., pres. F.A.C. Nat. size. 
Fig. 15. Chondrocidaris clarkii, sp. nov. Ambital view of test ; Murray 
River Cliffs, Morgan, lower beds ; Syntype (Reg. No. 13175) ; Nat. Mus., 
pres. F.A.C. Nat. size. 
big. 16. C. clarkii, sp. nov. Ambital view of the other syntype; Murray 
River Cliffs below Overland Corner, lower beds ; Reg. No. 13159 ; 
Nat. Mus., pres. F.A.C. Nat. size. 
Fig. 17. C. clarkii, sp. nov. Abactinal view of the same test, showing part 
of the perignathic girdle. Nat. size. 
Plate XIV. 
Fig. 18. Goniocidaris pentaspinosa Chapman and Cudmore. Iamb zone. 
Wongulla, Murray River, lower beds; Neotype (Reg. No. 13717); 
Nat. Mus., pres. F.A.C. x2. 
Fig. 19. G. pentaspinosa. Spines; Grice’s Creek; 5 Paratypes (Reg. No. 
13718) ; Nat. Mus., pres. F.A.C. x2. 
Fig. 20. G. murrayensis, sp. nov. Iamb zone; Morgan, lower beds ; Paratype 
(Reg. No. 13719) ; Nat. Mus., pres. A. King. x2. 
Fig. 21. G. murrayensis, sp. nov. Actinal view of Holotype ; Lower Murray 
River Cliffs; Reg. No. 4674 ; Nat. Mus., coll. C. R. Thatcher. x2. 
Fig. 22. G. murrayensis, sp. nov. Ambital view of holotype. x2. 
Fig. 23. G. mortenseni, sp. nov. Test fragment ; Aldinga, upper beds ; 
Holotype (Reg. No. 13720) ; Nat. Mus., pres. F.A.C. x2. 
Fig. 24. 3 Smooth Spines, incertae sedis, showing colour bands ; Wongulla, 
Murray River, lower beds ; Reg. No. 13722 ; Nat. Mus., pres. F.A.C. x2! 
Fig. 25. 3 Club-shaped Spines, incertae sedis ; Booanya, Western Australia ; 
Reg. No. 13723 ; Nat. Mus., pres. Miss A. E. Baesjou. x2. 
[ 148 ] 
