Plate 284, his. 



Hgs. 22, 23. Yatesii, species 11, repeated by error (20, 21, in 

 former plate, but not registered on the de- 

 scriptive page). Yatesii, Angas, Pro. Zool. 

 Soc. — St. Vincent's Gulf. Australia. 



„ 24, 25. EXPANSTTS, sp. 12, Sowerby, Pro. Zool. Soc. 1874. 

 Hab.— ? 



„ 26,27. GRANDis, sp. 13, A. Adams, Pro. Zool. Soc. 

 1865. Hab.—? 



28. FiMBRiATUs, sp. 14, A. Aclams, Pro. Zool. Soc. 

 1865. Hab. — ? 



„ 29, 30. DUPLiCATUS, sp. 15, Smverhy, Pro. Zool. Soc. 

 1870. Hab. — China seas. 



