of Prohoscidtferous Oasteropods. 429 



Genus Lyria, Gray. 



1. L. nucleus, Lamk. ( Voluta), Sow. Tlies. Conch. ( Voluta) sp. 



57, f. 108. 

 Hob. Tatiyania. 



2. L. cassidula, Rve., Sow. Tlies. Conch. ( Voluta) sp. 63, f. 130. 

 Hab. Kino-0-Sima. 



Genus VOLUTOMITRA, Gray. 



V. pusilla, Schrenck (Voluta), Moll. Amur-Landcs, pi. 17. 

 f. 13, 15. 



Hab. Hakodadi Bay {Schr.). 



Fam. Cassididse. 

 Genus Semicassis, Klein. 

 S. japonica, Rve. [Cassis), Conch. Icon. sp. 23. 

 Hfxb. Tatiyama, Tsusaki, 37 fathoms. 



Genus Phalium, Link. 



P. strigatum, Linn. (Buccinum), Syst. Nat. p. 3477 ; Rve. 

 Conch. Icon. ( Cassis) sp. 26. 



Buccinum n/gosum, Gm. 

 Cassis tmdata, Mjirt. 



zebra, Lamk. 



Cassidea areola, Brug. (not Linn.). 



Hab. Mososeki, 7 fathoms ; Seto-Uchi (Idsuma-Nada). 



Genus Casmaria, H. & A. Ad. 

 C. vibex, Linn. {Buccinum), Syst. Nat. ed. 12. 

 (Var.) B. erinaceus, Linn. 

 Hab. Tatiyama. 



A large variety, with the outer lip not denticulate at tiie 

 margin. 



Genus Morum, Bolt. 



M. [Oniscidea) cancellatum, Sow. {Oniscia), Genera of Shells, 

 gen. Oniscia, f. 1-3 ; Rve. Conch. Icon. sp. 4. 

 Cassiduria cancellata, Kien (not Lamk.). 

 Hab. Gotto, 71 fathoms. 



A variety, smaller, more pyriform, the inner lip more granu- 

 lated, and the outer lip more reflexed and more Urate than the 

 normal form. 



