150 Proceedings of the Royal Society of Victoria. 



Fig. 3. — Pyrula altispira, back view of smaller specimen, natural 



size. 

 ,, 4. — Tugalia crassireticulata, sp. nov., dorsal aspect, natural 



size. 

 „ 5. — Tugalia crassireticulata, side view, natui'al size. 

 „ 6. — Drillia crenularoides, sp. nov., natural size. 

 „ 7. — Drillia crenularoides, enlarged ornament. 

 ,, 8. — Delphinula imparigranosa, sp. nov., back view, twice 



natui'al size. 

 „ 9. — Delphinula imparigranosa, umbilical aspect, twice 



natural size. 

 ,, 10. — Calliostoma latecarina, sp. nov., back view, twice 



natural size. 

 „ 11, — Calliostoma latecarina, front view, t^v•ice natural size. 

 ., 12. — Turbo atkinsoni, sp. nov., natural size. 



Plate TV. 



Fig. 1. — Yoluta spenceri, sp. nov., adult specimen, natural size. 

 ,, 2. — Voluta spenceri, embryonic whorls of another specimen, 



natural size. 

 , 3. — Zenatiopsis fragilis, sp. nov., left valve, natural size. 

 , 4. — Zenatiopsis fragilis, right valve of smaller example, 



natural size. 

 , 5, — Dosinia densilineata, sp. nov., left valve, natural size 

 , 6. — Dosinia densilineata, front view of double valves, 



natural size. 

 , 7. — Dosinia densilineata, right valve of large example, 



natural size. 

 , 8. — Cypnea platyrhyncha, var. angustior, nov., dorsal 



aspect, natural size. 

 , 9. — Cypra^a platyrhyncha, var. angustior, nov., ventral 



aspect, natural size. 

 , 10. — Actfeon puteolata, sp. nov., front \iew, four times 



natural size. 

 , 11. — Acta?on puteolata, back view, four times natural size. 

 , 12. — Actaeon puteolata, embryo enlarged. 



