a -prapoBei new Genus of Gasteropodous MoUusca. 203 



and their shells more nearly resemble those of Neptunea than 

 of Buccinum. They appear to be principally from China and 

 Southern Japan, while the species of Neptunea are chiefly 

 northern shells, and are numerous in the northern parts of 

 Japan and Manchuria. The species of Siphonalia are commonly 

 variegated and destitute of epidermis, and are thin ventricose 

 shells; while the species of Cantharus and Cuma, which some- 

 what resemble them in form, are dense solid shells, and are 

 covered with a thick brown epidermis. 



1. Siphonalia cassidariaformis, Reeve. 

 Buccinum cassidariaforme, Rve. Conch. Icon. sp. 11. 

 Hah. 0-Sima; Simoda. 



2. Siphonalia signum, Reeve. 

 Buccinum signum, Rve. Conch. Icon. sp. 6. 

 Hab. 0-Sima ; Hakodadi. 



3. Siphonalia trochulus, Reeve. 

 Buccinum trochulus, Rve. Conch. Icon. sp. 7. 

 Hab. 0-Sima. 



4. Siphonalia fusoides, Reeve. 

 Buccinum fusoides, Rve. Conch. Icon. sp. 9. 

 Hab. Satanomosaki j Tsu-Sima. 



5. Siphonalia fuscolineata, Pease. 

 Neptunea fuscoKneata, Pease, Proc. Zool. Soc. 1860. 



Hab. Mino-Sima. 



6. Siphonalia modificata, Reeve. 

 Buccinum modificatum, Rve. Conch. Icon. sp. 67. 



Hab. Kuro-Sima ; 56 fathoms. Fatsijeu ; 29 fathoms. 



7. Siphonalia spadicea. Reeve. 

 Buccinum spadiceum, Rve. Conch. Icon. sp. 64. 

 Hab. Mino-Sima ; 63 fathoms. 



8. Siphonalia hinnulus, Adams & Reeve. 

 Buccinum hinnulus. Ad. & Rve. Moll. Voy. Sam. pi. 7. f. 10 a, b. 

 Hab. Tsusaki; 35 fathoms. Tatiyama. 



9. Siphonalia commoda, A. Adams. 



S. testa acuminato-ovata, sordide alba, epidermide tenui fugacea 

 obtecta ; spira aperturam vix sequante, conica ; anfractibus 7, 

 planis, in medio subangulatis, obsolete nodoso-plicatis, transversim 

 liratis; Uris majoribus albidis, minoribus fuscis, alternantibus; 



14* 



