of Prohoscidiferous Gasteropods. 423 



2. S. luteostoma^ Chcm. [BncciJirim) ^ Conch. Cab. vol. ix. p. 83, 



pi. 187. f. 1800, 1801. 



Purpura luteostoma, Rve. sp, 35. 



Hob. Tsus-Sima, Tatiyama {A. Ad.) ; Hakodadi {Schr.), 

 Yokohama {Ltschke). 



3. S. undata, Lamk. {Purpura), Hist Nat. ed. 2. t. 10, p. 67. 

 Purpura rustica, Lamk, 



Hah, Hakodadi {Schr.). 



Genus POLYTROPA, Swains. 



1. P. lapillus, Linn. {Buccinum), Syst. Nat. ed. 12. p. 1202. 



Puccinum Jllosum, Gmel. 

 Purpura lapillus, Lamk. 



imbricata, Lamk. 



bizonalis, Lamk. 



Jimhriata, Lamk. 



squamosa, Lamk. 



Freycineti, Desh. 



atte/tuata, Rve. ? 



analoga, Forbes. 



Hah. Cape Notoro, Saghalien, Hakodadi, Rifunsiri. 



2. P. decemcostata, Midd. (Purpura), Beitrage zu einer Malac. 



Rossica, Taf. 9. f. 1, 2, 3. 

 P. canaliculata, Duel. 

 Hah. Cape Tofuts, Aniwa Bay. 



3. P. crispata, Chenin. {Buccinum), Conch. Cab. 



P. septentriotialis, Rve. (Purpura), Conch. Icon. sp. 50. 

 P. plicata. Mart. 

 P. lactuca, Esch. 



Hah. Aniwa Bay, Saghalien, Olga Bay, Vladimir Bay. 



Genus SiSTRUM, Montf. 



1. S. tuberculatum, Blainv. {Ricinula), Nouv. Ann. du Mus. 



pi. 9. f. 3 ; Reeve, Conch. Icon. {Purpura) sp. 11. 



Purpura inarginella, Blainv. 

 granulata, Duel. 



Hah. Sado, Tsus-Sima, Tatiyama. 



2. S. sidereum, Rve. {Ricinula), Conc^. Icon. sp. 14. 

 Hah. Takano-Sima. 



Genus Engina, Gray. 



1. E. acuminata, Rve. {Ricimda), Conch. Icon. sp. 52. 



Hah. Tsus-Sima. 



29* 



