PLANAXIDA. 181 
8. Diala sp. 
3 Mauritius and Singapore; ex c. Dr. F. Stoliczka. 
9. Diala sp. 
2 Annesley Bay; coll. W. T. Blanford, Esq. 
Of a brilliant uniform green coloration. 
10. Diala marmorea. 
Diala marmorea, Carpenter. 
10 Monterey, California; coll. Prof. E. C. Stearns, 
Genus ALABA, H. and A. Adams. 
Gen. Moil. I, 1854, type A. melanura, C. B. Adams ; Smith, P. Zool. 8. 
1875, p. 588; fide A. Adams = Tuberia, Carpenter, 
A. Adams described A. lucida and A. imbricata, both from 
Japan and Suez ; the latter is rather a sp. of Diala, fide Smith. 
1. Alaba felina (?] 
Alaba felina, A. Adams, Ann, Mag. X, 1862, Japan, 
1 Japan ; ex Mr. Damon [coll. A. Adams ; labelled “ A. felina’’]. 
I very much doubt the correctness of this identification. 
2. Alaba leucosticta. 
Diala leucosticta, 4. Adams, Ann. Mag., VIII, 1861, Shantung and Loshan- 
kow. 
Long. 6, diam. 3 mil. 
1 China? ; ex Mr. Damon [coll. A. Adams]. 
3. Alaba melanura. 
Rissoa melanura, C. B. Adams, Contr. Conch. 1850, p. 116, Jamaica. 
1 Loe. ? ; ex Mr. Damon [coll. A. Adams], 
12 W. Indies; ex ec. J. Wood-Mason, Esq. 
