990 on some recent shells found on the maclay-coast, 



15. Bulla ampulla. 



Bulla ampulla, Linn. Gmelin, p. 3424, No. 10. Sowerby, 

 Thes. Concb., p. 575, pi. 122, fig. 59. Bulla trifasciata, Sowerby 

 in Reeve. Concb. Icon., pi. 1, fig. 1. Brazier, Proc. Linn. Soc, 

 N.S.W., Vol. 2, p. 83, No. 33. 



This species is only represented by the dorsal surface showing 

 two transverse bands. Mr. Sowerby figures it in the Thes. Conch, 

 figure 59, as Bulla ampulla, Linn., but in Reeve's Conch. Icon., 

 he re-describes it as Bulla trifasciata. I believe it to be only a 

 variety of ampulla. 



16. Atys cylindrica. 

 Bulla cylindrica, Helblings. Chem, fig. 1356, 1357. 

 Bulla cylindrica (Atys), A. Adams in Sowerby, Thes. Conch., 

 pi. 125, fig. 114. 



17. Atys cylindrica variety elongata. 



Bidla elongata, (Atys), A. Adams in Sowerby, Thes. Conch., 

 pi. 125, fig. 121. 



18. Atys. Spl 



This species (a single specimen) may be a small variety of Atys 

 cylindrica. 



19. Dentalium longitrorsum. 



Dentalium longitrorsum, Reeve. Proc. Zool. Soc, 1842, p. 197 ; 

 Sowerby, Thes. Concb., Vol. 3, pi. 223, fig. 59, 60. 



20. CULTELLUS. Sp 1 



Represented by a sea worn valve. 



21. Corbula crassa. 



Corbida crassa, Hinds. Proc. Zool. Soc, 1843, p. 55. 

 Represented by two odd valves. 



