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



4. Chrijsallida pulchella, A. Adams. 



C. testa ovato-acuminata, rimata, subturrita, alba, tenui, semiopaca ; 

 anfractibus normalibus 4, planatis, superne ad suturas vix angu- 

 latis, longitudinaliter plicatis, plicis obliquis, tenuibus, subdistanti- 

 bus, interstitiis transversim liratis ; apertura ovata, antice sub- 

 effusa ; labro margine postice subangulato. 



Hob. Lo-shan-kow; Shan-tung. 



A pretty, neatly-sculptured species, with the interstices be- 

 tween the slender plicse of the whorls delicately lirate. 



5. Chrijsallida tenuicula, A. Adams. 



C. testa parva, ovata, alba, tenui, semipellucida ; anfractibus norma- 

 libus 2, longitudinaliter plicatis, plicis tenuibus, undatis, subdis- 

 tantibus, interstitiis transversim striatis ; anfractu ultimo ventri- 

 coso ; apertura acuminato-ovata ; plica parietali obliqua, incon- 

 spicua ; labro simplici. 



Hab. Hulu-Shan Bay; 4 fathoms. 



A small semipellucid species, finely plicate, and with the last 

 whorl ventricose. 



6. Chrijsallida mundula, A. Adams. 



C. testa ovato-conica, alba, solida ; anfractibus normalibus 3, pla- 

 natis, longitudinaliter plicatis, plicis validis, confertis, interstitiis 

 simplicibus ; anfractu ultimo ad peripberiam rotundato, plicis ad 

 basin productis ; apertura acuminato-ovata ; plica parietali denti- 

 formi, mediana, transversa; labro margine subincrassato. 



Hab. Lo-shan-kow; Shan-tung. 



A short, ovately-conical, white, plicate species, with a peculiar 

 dentiform parietal plica. 



7. Chrysallida costellata, A. Adams. 



C. testa pyramidato-ovata, alba, solida ; anfractibus normalibus 4, 

 planatis, subimbricatis, longitudinaliter costatis, costis rectis, va- 

 lidis, interstitiis simplicibus ; anfractu ultimo ad peripheriam an- 

 gulato, costis ad peripheriam abrupte desinentibus ; basi laevi ; 

 apertura quadrato-ovata, antice producta et acuminata ; plica 

 parietali parva, superiore, transversa ; labro in medio angulato. 



Hab. Kala-hai; Shan-tung. 



A small, ribbed, short, pyramidal species, with the outer lip 

 angulate in the middle. 



8. Chrijsallida gemma, A. Adams. 



C. testa oblongo-ovata, rimata, albida, solida ; anfractibus normali- 

 bus 3, planatis, superne prope suturas longitudinaliter plicatis, 

 inferne transversim valde liratis ; suturis profundis ; apertura acu- 



