PLANAXIDJ!. 18] 



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 j coll. Prof. E. C. Stearns. 



Genus ALABA, H. and A. Adams. 



Gen. Moll. I, 1854, type A. melanura, C. B. Adams ; Smith, P. Zool. S. 

 1875, p. 538 J fide A. Adams = Tuheria, 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, A. Adams, Ann. Mag., VIII, 1861, Shantung and Loshan' 

 Jcow. 



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 Loc. ? ; ex Mr. Damon [coll. A. Adams]. 

 12 W. Indies; ex c. J. Wood- Mason, Esq. 



