Plate 12 



Fig. 1. Alvania acuminata Gould. Bonin Islands. Holotype USNM 943. Height 3.5' 



width 1 mm. (1 1 x). 

 Fig. 2. Alvania ligata Gould. Hong Kong Harbor [China]. Lectotype USNM 948. 



Height 3.8, width 2 mm. (10 x). 

 Fig. 3. Alvania fusca Gould. Hong Kong Harbor [China]. Lectotype USNM 37347. 



Height 4.8, width 2 mm. (10 x). 

 Fig. 4. Actaeon secale Gould. China Seas. Holotype USNM 557. Height 4, width 2 



nun. (10 x). 

 Fig. 5. Alba puncto-striata Gould. Loo Choo [Okinawa, Ryukyu Islands]. Possible syn- 



type USNM 991. Height 4.5, width 2 mm. (12 x). 

 Fig. 6. Assiminea rubida Gould. Loo Choo [Okinawa, Rvukyu Islands]. Holotype 



USNM 24235, original no. 2102. Height 4, width 3.8 mm. (6 x). 

 Fig. 7. Assiminea debilis Gould. Loo Choo [Okinawa, Ryukyu Islands]. Holotype 



USNM 975. Height 4.5, width 3 mm. (6 x). 

 Fig. 8. Atys muscaria Gould. China Seas. Lectotype USNM 334. Height 4.5, width 



2.6 mm. (8.5 x). 

 Fig. 9. Aesopus japonicus Gould. Kagos[h]ima Bay [Japan], at 5 fathoms. Holotype 



MCZ 169208. Height 7, width 2 mm. (11.4 x). 

 Fig. 10. Bankivia lugubris Gould. Sydney, New South Wales [Australia]. Lectotype 



USNM 24238, original no. 278. Height 9, width 6 mm. (5.5 x). 

 Fig. 11. Bittium alutaceum Gould. China Seas. Lectotype USNM 24179, original no. 



531. Height 7.2, width 5.1 mm. (6.6 x). 

 Fig. 12. Bittium craticulatum Gould. Hong Kong [China]. Lectotype MCZ 169100. 



1 [eight 7, width 2.1 mm. (13 x). 

 Fig. 13. Atys porcellana Gould. Kagos[h]ima Bay [Japan]. Holotype USNM 1357. Height 



12, width 5 mm. (1.9 x). 

 Fig. 14. Bittium parcum Gould. Loo Choo [Okinawa, Ryukyu Islands]. Lectotype USNM 



2040. Height 4, width 1.8 mm. (10.5 x). 

 Fig. 15. Bittium glareosum Gould. Port Lloyd, Bonin Islands, and Loo Choo [Okinawa, 



Ryukyu Islands]. Holotype USNM 24221, original no. 971. Height 6, width 2 mm. (7 x). 

 Fig. 16. Clathurella rubicunda Gould. Loo Choo [Okinawa, Ryukyu Islands]. Holotype 



USNM 24163. Height 5, width 2 mm. (5.5 x). 



