KXPI.ANATION OK Pf,ATK \LI1I. 



S". 15. Tiirridrupa pertinax Hedley. f ype. 



16. Epideira cjahensis Hedlej. Type. 



17. ,, philippineii Teiiisoii-Woods. N. W. TasniMiiia. 



18. ,, fitriatii Gray. Port .lacksoii. 



19. „ „ Apex. 



20. ,, „ Operculum. 



21. ., torquata Hedley. 'ry[)e. 



22. Mitrithara alba Petterd. Flinders, Victoria. 

 28. ,. columyuoia Hedley. Type. 



24. ., proles Hedley. Type. 



25. I iKfiiisitur (uyriuriidtH Hedley. Type. 



26. ,, i-.oxi Aiigas. Port Jackson. 



27. .. Jibralus Hedley. Type. 



