Victorian Fossils, Part XVII. ;5(31 



Platk VIII. 



Fig. 18. — Nautilus halcomhensiti, sp. nov. Specimen in the 

 brephic stage, with siphixncular orifice clearly seen on the 

 face of the chamber, and with the superficial shell-orna- 

 ment well-preserved. Balcombian. Balcombe Bay, Port 

 Phillip. (Coll. F. A. Cudmore). Paratype. Nat. size. 



Fig. 19. — N . balcotnben.sis, sp. nov. Ornament in aboA'^e specimen 

 enlarged. x 3. 



Fig. 20. — Notosepifi cliftonensis, sp. et gen. nov. Balcombian. 

 Balcombe Bay. (Coll. W. Kershaw). Paratype. Nat. size. 



Fig. 21. — N. cliff ovensis, sp. nov. Sepion in early stage of 

 growth, showing recurved mucro. Balcombian. Balcombe 

 Bay. (Coll. W. Kershaw). Paratype. x 2. 



Fig. 22. — N . cliffone?isis, sp. nov. The proostracum, showing 

 outer shell and inner concentric lamininae. Balcombian. 

 Clifton Bank, Muddy Creek. (Coll. H. Lodge). Paratype. 

 Nat. size. 



