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



ultimo rotundato ; apertura orbiculato-quadrata, antice subpro- 

 ducta et angulata ; labio rectiusculo, superne vix flexuoso. 



Hab. Port Hamilton ; 7 fathoms. 



2. Ebala scintillans, A, Adams. 



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

 tibus iiormalibus 7, planiusculis, simplicibus ; anfractu ultimo 

 rotuudato ; apertura subquadrata ; labio recto, antice producto. 



Hab. Sado ; 30 fathoms. 



Genus Chrysallida, P. P. Carpenter. 

 1. Chrysallida jiygmcea, A. Adams. 



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

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

 punctatis ; anfractu ultimo ad basin rotundato ; apertura oblonga ; 

 jilica parietali inconspicua, obliqua. 



Hab. Port Hamilton; 7 fathoms. 



2. Chrysallida pupula, A. Adams. 



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

 anfractibus 5^, 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 5^, planis, plicis rectis validis, interstitiis sim- 

 plicibus ; anfractu ultimo ad peripheriam rotundato ; apertura 

 oblonga ; plica parietali transversa, valida, 



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 5^, 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. 



