of new south wales. 179 



39. —Nassa (Niothia) marginulata. 



Buccinum marginulatum, Lam., Auim. Sans Vert., tome 7, 

 p. 278. 



Nassa marginulata, Reeve, Conch. Icon., pi. 7. sp. 43. 



Hab. Darnley Island, Torres Straits, 20-30 fathoms, sand and 

 coral bottom. 



40. — Nassa (Niothia) albescens. 

 Buccinum albescens, Dunker, Abbild, und Besch, 1849, p. 68, 

 pi. 2, fig. 15. 



Nassa albescens, Reeve, Conch. Icon. pi. 15, species 100. 



jj ; , bicolor, Homb. and Jacq., Voy. au Pol. Sud, 



p. 84, pi. 21, fig. 41, 42. 



Hub. Darnley Island, Torres Straits, 5 fathoms, sand bottom. 



41. — Nassa (Niothia) densigranata. 



Nassa densigranata, Reeve, Conch. Icon., 1854, pi. 27, species 

 181. 



Hab. Darnley Island, Torres Straits, 20 fathoms, sand and coral 

 bottom. 



42. — Nassa (Niothia) ravida. 

 Nassa ravida, A. Adams, Proc. Zool. Soc, London, 1851, p. 97. 



„ ravida, Reeve, Conch. Icon., pi. 11, species 68. 

 Hab. Darnley Island, Torres Straits, 20 fathoms, sand and coral 

 bottom. 



43. — Nassa (Arcularia) Thersites. 



Buccinum Thersites, Brng., Lam. Anim. Sans Vert., tome 7, 

 p. 277. 



Nassa Thersites, Lam. Encyclop., pi. 394, fig. 8 a, b. 



Hab. Hall Sound, New Guinea. Found on the sandy mud flats 

 at low water. 



44. — Nassa (Arcuiaria) callosa. 

 Nassa callosa, A. Adams, Proc. Zool. Soc, London, 1851, p. 98. 



„ Reeve, Conch. Icon., pi. 28, species 185. 



Hab. Darnley Island, Torres Straits, 5, 10, 15, 20 fathoms, 

 sandy mud bottom. 



