132 RISSOIDE. 
2 Japan [typical]; ex Mr. Damon [‘‘coll. A. Adams ”’]. 
40 Singapore; coll. Dr. F. Stoliczka, 
10 Mauritius ; coll. G. Nevill, Esq. 
18 Andamans and Nicobars; coll. J. Wood-Mason, Esq., and Dr. F, 
Stoliczka. 
3 Hongkong; coll. R. Hungerford, Esq. 
7. Scaliola elata. 
Scaliola elata, Semper, Issel, Malac. Mar Kosso, 1869, Suez; long. 23, 
diam. 1 mil., and Zanzibar [Semp.]. 
Seems to me doubtfully distinct from S. arenosa ? 
5 Suez [typical]; coll. Prof. A. Issel. 
50 Annesley Bay; coll. W. T. Blanford, Esq. 
var. [?] 
2 Aden; coll. Dr. F. Stoliczka, 
8. Sealiola, n. sp. 
1 Nicobars; coll. Dr. F. Stoliczka, 
[?] Genus MICROSTELMA, A. Adams. 
Ann, Mag. XI, 1863, type M. daedala, A, Ad., Gotto Isl. ; M. concinna, 
A. Adams, l. ¢., VI, 1870, from Suez, fide McAndrews, a broken Ris- 
soina! 
This and the two next Genera are not represented in the 
Museum. ; 
[?] Gunos CORENA, A. Adams. 
Ann. Mag. VI, p. 122, 1870, type C. tuberculifera, A, Ads; Srom Suez. 
[?] Genus RISSOPSIS, Garrett. 
P. Acad, Philad, 1873, type R. typica, Garrett, from Viti and Samoa. 
