Mr. A. Adams on new Mollusca from China and Japan. 305 



the whorls with the strise of growth crossed by fine transverse 

 elevated lines. 



3. Lacuna turrita, A. Adams. 



L. testa elongato-conoidea ; spira elata, vix rimata, tenui, pallide 

 fusca ant livida, apice violascente, basi fascia alba circumcincta ; 

 anfractibus 4, convexis, striis incrementi et lineis transversis de- 

 cussatis ; anfractu ultimo rotundato ; apcrtura ovato-orbiculari, 

 basi subproducta. 



Hob. Rifunsiri (on the shore). 



This is a somewhat turreted species, partaking of the general 

 character of L. a-assior, Walker; the umbilical region is white, 

 there is no distinct umbilical fossa, and the last whorl is encir- 

 cled with a white zone. 



Genus Teinostoma, H. & A. Adams. 



Teinostoma Carpcnteri, A. Adams. 



T. testa orbiculato-ovata, superne convexa, lactea, opaca, lfevi, nitida ; 

 umbilico callo obtecto ; anfractibus rapide crescentibus ; apertura 

 producta, antice acuminata; labro supra anfractum penultimum 

 reflexo. 



Hab. Gulf of Pe-chili ; 7 fathoms. 



The only shell at all resembling this is Teinostoma amplectans, 

 Cpr., which, however, has a rounded aperture, whereas in this 

 species it is anteriorly produced, as in the type, T. politum, A. Ad. 

 The spire is entirely concealed by the last whorl, leaving only a 

 minute pit at the apex, and the umbilical callus has a slight 

 rimal fissure. 



Genus Adeorbis, Searles Wood. 



Adeorbis sinensis, A. Adams. 



A. testa discoidali, spira prominula, alba, subporcellana, opaca, 

 striis incrementi radiantibus et lineis spiralibus transversis decus- 

 sata ; anfractibus regulariter crescentibus, ultimo ad peripberiam 

 obtuse angulato ; umbilico patulo, perspectivo, margine carinato ; 

 apertura quadrato-orbiculari ; labro mediocri. 



Hab. Gulf of Pe-chili ; 4 fathoms. 



This is a rather large opake-white species, having very much 

 the aspect of Ethalia; but there is no trace of an umbilical 

 callus. 



Genus Ethalia, H. & A. Adams. 

 1. Ethalia atomaria, A. Adams. 

 E. testa perparva, ovato-discoidali, alba, semidiaphana, radiatim 

 Ann. $ Mag. N, Hist. Ser. 3. Vol. viii. 20 



