44 Mr. A. Adams on new MoUusca from Japan. 



ultimo rotundato ; apertura orbiculato-quadrata, antice subpro- 

 ducta et angulata ; labio rectiusculo, superne vix flexuoso. 

 Hub. Port Hamilton ; 7 fathoms. 



2. Ebala scintillans, A. Adams. 



E. testa subulata, turrita, alba, opaca, nitida, imperforata ; aiifrac- 

 tibus normalibus 7, plauiusculis, simplicibus ; anfractu ultimo 

 rotundato ; apertura subquadrata ; labio recto, antice producto. 



Flab. Sado ; 30 fathoms. 



Genus Chrysallida, P. P. Carpenter. 

 1. Chrysallida pijgmaa, A. Adams. 

 C. testa parva, turrita, in medio tumida, apiee obtuso, alba ; anfrac- 

 tibus A\, planis, longitudinaliter plicatis, plicis rectis, interstitiis 

 punctatis ; anfractu ultimo ad basin rotundato ; apertura oblonga ; 

 plica parietali inconspicua, obliqua. 



Hab. Port Hamilton ; 7 fathoms. 



2. Chrysallida pupula, A. Adams. 

 C. testa subrimata, oblongo-ovata, in medio tumida, tenuicula, albida ; 

 anfractibus o\, planulatis, longitudinaliter plicatis, plicis rectis 

 validis, ad suturas rotundatis ac prominentibus, interstitiis trans- 

 versim striatis ; anfractu ultimo ad basin rotundato et contracto ; 

 apertura oblonga ; plica parietali obliqua. 



Hab. Tsu-Sima ; 16-26 fathoms. 



3. Chrysallida consimilis, A. Adams. 



C. testa oblongo-ovata, subrimata, alba, solida, longitudinaliter pli- 

 cata ; anfractibus 5y, planis, plicis rectis validis, interstitiis sim- 

 plicibus ; anfractu ultimo ad peripheriam rotundato ; apertura 

 oblonga ; pUca parietali transversa, vahda. 



Hab. Port Hamilton ; 7 fathoms. 



Like C. pupula, but elongated and less tumid in the middle ; 

 inner lip thickened, and the parietal plica strong and transverse; 

 the interstices between the ribs simple. 



4, Chrysallida consobrina, A. Adams. 



C. testa oblongo-ovali, subrimata, alba, solida, subpyramidali ; an- 

 fractibus a\, planiusculis, longitudinaliter plicatis, plicis rectis 

 validis, interstitiis valde striatis ; apertura ovata ; plica parietali 

 valida ; labro intus sulcato. 



Hab. Awa-Sima; in shell-sand. 



Like C. pupula, but stouter and more pyramidal, and with the 

 interstices coarsely striated; outer lip internally sulcate. 



