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



ovata, postice acuminata, antice rotundata ; labio in medio sub- 

 flexuoso ; peritremate vix continue ; labro raargine acuto, recto. 



Hah. Gulf of Pe-chili ; 3 fathoms. 



This is an elegant subulate species^ with the whorls finely 



striated transversely; the inner lip is flexuous in the middle, 



and the outer lip is thin and simple. 



Genus Alvania, Risso. 

 1. Alvania hadia, A. Adams. 



A. testa ovato-conica, solida; anfractibus 5, duobus superioribus 

 Isevibus, cseteris longitudinaliter plicatis, plicis validis, distantibus, 

 transversim liratis, liris prominentibus ; anfractu ultimo semi- 

 plicato, basi convexa liris validis concentricis ornata, plicis ad peri- 

 pheriam desinentibus ; apertura ovato-acuminata ; labro margine 

 subincrassato ; pallide fusca aut rufescente, basi et labro antice 

 albidis. 



Hab. Kala-haij Shan-tung. 



The colour varies from pale fuscous to reddish brown ; and 

 the species may always be known by the base and fore part of 

 the outer lip being whitish. 



2. Alvania scitula, A. Adams. 

 A. testa ovato-turbinata, tenui, rimata, luteo-fusca, semiopaca ; an- 

 fractibus 5, planiusculis, duobus superioribus Isevibus, caeteris longi- 

 tudinaliter plicatis, plicis tenuibus confertis, transversim liratis ; 

 anfractu ultimo plicis ad peripheriam obsoletis ; apertura acumi- 

 nato-ovata ; labro margine subincrassato. 



Hab. Lo-shan-kowj Shan-tung. 



The sculpture of this species is of the same character as that 

 of A. badia ; but the form is different, and the base and outer 

 lip are not white. It is also a much thinner shell and more 

 delicately sculptured. 



Genus Dunkeria, P. P. Carpenter. 

 1. Dunkeria rufocincta, A. Adams. 



D. testa turrita, in medio tumidula, pallide fusca, cingulo rufo ad su- 

 turas ornata ; anfractibus normalibus 9, longitudinaliter plicatis, 

 transversim valde liratis, liris ad plicas nodulosis, plicis lirisque 

 sequidistantibus regularibus ; basi convexa, cingulo rufo ornata ; 

 apertura ovata ; labio simplici, arcuato ; labro margine acuto. 



Hab. Shan-tung ; Lian-tung. 



This is a common species both in Shan-tung and Lian-tung, 

 living in deep water. The longitudinal plicse and transverse 

 lirse decussate each other in a regular manner, giving the surface 

 a reticulated appearance. The rufous band at the sutures is 



