208 On the Shells of the Loutstade Archipelago. 
5. Neritina subsuleata, Sowerby. 
Hab. St. Aignan (Thomson). 
6. Neritina powisiana, Récluz (dark var.). 
Hab. St. Aignan (Thomson). 
7. Neritina olivacea, Récluz. 
Hab. St. Aignan (Thomson). 
8. Neritina Turtoni, Récluz. 
Hab. Sudest Island (MacGillivray). 
9. Neritina diadema, Récluz. 
Hab. “Isola St. Stephens (Arcipelago Luisade)” (Canefri). 
10. Neritina brevispina, Lamarck, var. 
Hab. St. Aignan and Rossel Island (Thomson) ; Sudest 
Island (Thomson and MacGillivray). 
The specimens from these islands agree with the form of 
this species named subgranosa by Récluz. 
11. Neritina tahitensis, Lesson. 
Hab. Sudest Island (MacGillivray). 
12. Septaria Bougainvillet, Récluz. 
Hab. Sudest Island (MacGillivray). 
13. Melania amarula, Linné. 
Hab. Sudest Island (MacGillivray). 
14. Melania salomonis, Brot. 
Hab, Sudest Island (MacGillivray). 
15, Melania maurula, Reeve. 
Hab. Louisiade Archipelago (MacGillivray). 
“ South-east coast of Guinea,” the locality given by Reeve, 
is evidently an error, and doubtless New Guinea was intended, 
as suggested by Brot (Mon. Jelan. p. 196). The specimen 
collected by MacGillivray, probably on Sudest or South-east 
