Mr. A. Adams on new Mollusca from China and Japan. 245 



intention, and to have grouped the species geographically — a 

 comparatively easy task. If Dr. Gray or M. Morch would take 

 them up where M. Fischer laid them down, we should perhaps 

 find the species arrange themselves in a more orderly manner. 



1. Adeorbis clausa, A. Adams. 



A. testa discoidali; spira depressa, albida, subdiaphana, striis incre- 

 ment radiatim ornata ; anfractibus rapide crescentibus, ultimo ad 

 suturas vix angulato, ad peripheriam rotundato ; umbilico callo 

 tenui vix clauso ; labro producto. 



/lab. Tabu-Sima; 25 fathoms. 



2. Adeorbis orbella, A. Adams. 



A. testa discoidali ; spira planata, alba, subporcellana, nitida, semi- 

 opaca, radiatim striata ; basi transversim confertim sulcata ; anfrac- 

 tibus regulariter crescentibus, ultimo ad peripheriam rotundato ; 

 umbilico patulo, perspectivo, margine rotundato ; labro subpro- 

 ducto. 



Hob. Mino-Sima; 63 fathoms. 



3. Adeorbis prominula, A. Adams. 



A. testa discoidali ; spira elatiuscula, alba, subdiaphana, nitida, striis 

 incrementi ornata ; anfractibus rapide crescentibus, ultimo ad peri- 

 pheriam rotundato ; umbilico mediocri, margine cariuato ; labro 

 producto. 



Hab. Korea Strait ; 46 fathoms. 



4. Adeorbis depressa, A. Adams. 



A. testa discoidali ; spira planata, alba, vix opaca, radiatim striata ; 

 anfractibus rapide crescentibus, ultimo ad peripheriam rotundato ; 

 basi rugulis radiantibus oruata ; umbilico patulo, margine valde 

 rugoso-crenato ; labro mediocri. 



Hab. Korea Strait ; 46 fathoms. 



5. Adeorbis patruelis, A.Adams. 



A. testa ut in A. japonica discoidali, sed spira elatiuscula, alba, ni- 

 tida, semipellucida, radiatim striata ; anfractibus regulariter cres- 

 centibus, convexiusculis, ultimo ad suturam vix angulato, ad peri- 

 pheriam rotundato ; umbilico angusto, margine cariuato ; labro 

 mediocri. 



Hab. Mino-Sima ; 63 fathoms. 



6. Adeorbis corniculum, A. Adams. 



A. testa ovato-discoidali, tenui, nitida, subdiaphana, radiatim minu- 

 tissime striata ; anfractibus rapide crescentibus ; umbilico angusto, 

 margine valde cariuato ; labro producto. 



Hab. Mino-Sima ; 63 fathoms. 



