LEUCOTINA. 169 



itudinally striated. Aperture ovate, acute behind ; parietal fold 

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



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



Leucotina exaraia Ad., Ann. Mag. N. H. (3), vi, p. 421, Dec, 

 1860. 



L. iNscuLPTA A. Adams. 



Shell acuminate-ovate, white, perforate, rather solid, whorls 44, a 

 little convex, transversely lirate, the interstices strongly punctate. 

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

 thickened, parietal fold nearly concealed. {Ad.). 



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



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

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



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

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



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

 acute. Whorls slightly convex, transversely lirate, the lirse flat, 

 equally spaced, the interstices closely, subtly punctate. Aperture 

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

 bilical 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- 

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

 fold superior. (Ad.). 



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



Leucotina punctata Ad., (. 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.). 



Myonia japonica A. Ad., Ann. Mag. N. H. (3), v, p. 406, May, 

 1860. 



