258 Transactions. 



33. Calyptraea novae-zeelandiae, Lesson. 

 Voy. " Coquille," Zool., vol. ii, 1830, p. 395. 

 A few empty shells. 



34. Calyptraea scutum, Lesson. 

 Voy. " Coquille," Zool., vol. ii, 1830. p. 395. 



Many dead shells with the septum mostly broken off. 



35. Crepidula crepidula (Linne). 

 Patella crepidula, L., Syst. Nat., ed. 10, 1758, p. 1257. 



A few dead shells. 



36. Crepidula aculeata (GmeUn). 



Patdla aculeata, Gmel., Syst. Nat., ed. 13, 1788, p. 3693. 

 A few shells. 



37. Trichotropis inornata, Hutton. 

 Cat. Mar. Moll. N.Z., 1873, p. 26. *, 



One empty shell only. 



38. Natica zelandica, Q. and G. 

 Voy. " Astrolabe," Zool., vol. ii, 1832, p. 237, pi. 66, figs. 11-12. 

 One empty shell. 



39. Trochus tiaratus, Q. and G. 

 Voy. " Astrolabe," Zool., vol. iii, 183L p. 256. pi. 64, figs. 6-11. 

 Three young dead shells. 



40. Calliostoma pellucidum, Valenciennes. 

 Voy. " Venus," Moll., pi. 4, fig. 2, 1846. 

 Two live examples. 



il. Cyclostrema subtatei, n. sp. Plate IX, figs. 6-8. 



Shell minute, subdiscoidal, spirally lyrate, broadly umbili- 

 cated. Sculpture formed by broad and shallow spiral grooves, 

 slightly broader on the periphery, leaving between them narrow 

 and sharply raised ridges, 10 on the last whorl. Colour white. 

 Spire very low. Protoconch flatly convex, smooth, formed by 

 one whorl. Whorls 3, the last large and descending a little. 



