Mr. A. Adams on new Mollusca from China and Japan. 301 



sometimes obsolete or wanting, and the apex is often tinged with 

 dark brown. 



2. Dunkeria Candida, A. Adams. 



D. testa subrimata, turrita, in medio tumidula, tenui, alba, opaca, 

 pUcis longitudinaUbus et liris elevatis transversis reticulata ; an- 

 fractibus 8, convexis ; suturis profundis ; apertura ovata, antice 

 subproducta ; labio simplici ; labro in medio rectiusculo, margine 

 acuto. 



Hab. Lo-shan-kowj Shan-tung (shell-sand). 



This species is very similar in form to D. rufocincta, but it is 

 pure white, and of finer and more regular sculpture. 



Genus Chrysallida, P. P. Carpenter. 



1. Chrysallida casta, A. Adams. 



C. testa turrito-ovata, alba, tenui, semipellucida, subrimata ; anfrac- 

 tibus normalibus 4, plauiusculis, ad suturas \ix angulatis, longitu- 

 dinaliter plicatis, plicis flexuosis, angustatis, subdistantibus, inter- 

 stitiis transversim valde striatis ; anfractu ultimo ad peripheriam 

 rotundato, plicis ad basin extendentibus ; apertura ovata, antice 

 producta et acuminata ; plica parietali obsoleta, vix cselata ; labro 

 margine postice subangulato. 



Hab. Kala-hai; Shan-tung. 



A very elegant, pure-white, plicate species, semipellucid and 

 of thin texture, with the aperture pointed and produced at the 

 fore part. 



2. Chrysallida inconspicua, A. Adams. 



C. testa elongato-ovata, alba, nitida, solidula ; anfractibus normali- 

 bus 3, planatis, longitudinaliter plicatis, plicis rectis, confertis, 

 usque ad basin productis ; suturis profundis ; anfractu ultimo ad 

 peripheriam rotundato ; apertura ovata ; plica parietali obliqua, 

 mediana, parva ; labro simplici. 



Hab. Kala-hai; Shan-tung. 



A small elongate-ovate species, with flat longitudinally plicate 

 whorls. 



3. Chrysallida miranda, A. Adams. 



C. testa subturrito-ovata, alba, rimata, semiopaca, tenui ; anfractibus 

 normalibus 3, spiralis, planis, supeme angulatis, longitudinaliter 

 plicatis, transversim liratis ; suturis canaliculatis ; apertura ovata, 

 antice producta ; plica parietali obliqua, mediana ; labro margine 

 postice angulato. 



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



A very pretty little species with spirate angular whorls, neatly 

 reticulated with longitudinal plicse and transverse lirse. 



