LEUCOTINA. 169 



ludinally striated. Aperture ovate, acute behind ; parietal fold 

 irly median, small, oblique. (Ad.). 



Tabu-Sima, Japan, 25 fms. (Ad.). 



Leucotina exarata AD., Ann. Mag. N. H. (3), vi, p. 421, Dec., 

 I860. 



i. INSCULPTA A. Adams. 



Shell acuminate-ovate, white, perforate, rather solid, whorls 43, a 

 ittle convex, transversely lirate, the interstices strongly punctate, 

 iperture oblong, narrowed behind, dilated in front, the inner lip 

 [hickened, parietal fold nearly concealed. (Ad.). 



Strait of Corea, 46 fms. (Ad.). 



Leucotina insculpta A. AD., Ann. Mag. N. H. (3), vi, p. 421 ; 

 iin. Mag. (3), viii, p. 138. 



Adams republished this species, from the same locality, but with a 

 lew diagnosis, in 1861. His later description is here given : 



Shell ovate-conic, rimate, white, rather solid. Spire elevated, 

 jute. Whorls slightly convex, transversely lirate, the lira? flat, 

 [ually spaced, the interstices closely, subtly punctate. Aperture 

 ite ; with a parietal fold above; lip subexplanate in front; um- 

 >ilical region impressed, rimate. (Ad.). 



L. PUNCTATA A. Adams. 



Shell ovate, rather solid, imperforate; spire produced, acute; 

 whorls a little flattened, transversely sulcate, the sulci deeply punc- 

 itate; aperture ovate; lip somewhat thickened in front; parietal 

 fold superior. (Ad.). 



Tabu-Sima, Japan, 25 fms. (Ad.). 



Leucotina punctata AD., t. c., p. 139. 



L. JAPONICA A. Adams. 



Shell turrited-subulate, white, subpellucid ; whorls a little flat- 

 tened, transversely sulcate, the sulci distant, interstices punctate ; 

 aperture oblong, subreflexed in front ; inner lip rather straight, 

 furnished above with a scarcely conspicuous oblique fold; outer lip 

 sulcate within, the margin crenulated. (Ad.). 



Strait of Corea; off Niphon (Ad.). 



Mijonia japonica A. AD., Ann. Mag. N. H. (3), v, p. 406, May, 

 1860. 



