170 LEUCOTINA. 



Most nearly allied to A. luutu A. Ad. This species is the type of 

 the genus Myonia A. Ad. 



I., iii.'. \xs A. Adams. 



Shell subulate, thin, semi-opaque, graceful. Whorls 6, slightly 

 convex, transversely sulcate, the sulci oblique, distant and punctate. 

 Aperture ovate, acuminate posteriorly ; parietal fold thin, median, 

 oblique; lip simple. (Ad.). 



Gulf of Pe- Chili, 5 fms. (Ad.). 



M linn in elegant AD., Ann. Mag. N. H. (3), viii, p. 241, Sept., 

 1861. 



Most like M. punctigera A. Ad., but more slender and transparent, 

 with longer whorls and a thin inner lip; the transverse grooves, 

 moreover, are not so coarsely punctate. (Ad.*). 



L. SCITULA A. Adams. 



Shell subulate-ovate, white, opaque, shining:. Whorls 4, a little 

 flattened, transversely sulcate, the sulci distant, closely punctate; 

 sutures impressed. Last whorl large, elongated. Aperture ovate, 

 dilated in front, acuminate behind ; parietal fold conspicuous, 

 oblique, lip simple. (Ad.). 



Mino-Sima, Japan, 63 fms. (Ad.). 



Mii'niin .-<! f ii /d AD., t. c., p. 242. 



A small species, somewhat similar in appearance to M. ]>n/t<-tigera 

 from tin.- ( Julf of Pe-chili, but shorter and more ovate. (Ad.). 



L. tfODBNU A. Adams. PI. 49, figs. 8, 9. 



Slu-11 elongate-conic, subpellucid, thin, white. Spire turrited- 

 acute. Whorls slightly convex, transversely sulcate, the sulci equi- 

 distant, punctate; longitudinally .-triated. Aperture oval; col- 

 urnella obli(|iie, uni-plicate. (Ad.). 



Corrigidor 1 fms. (Coming). 



Action modestus A. AD., P. Z. S. 1854, p. 60. Tornatelln ino<I- 

 eeta KI.I.VI., ( bneh, I-.,n. xv, pi. 4, f. 20. 



This is an elongated, semipellucid species, resembling more a 



: n<i than an A'-fmni. with the spire elevated, and the plait 

 on the coliniH-lla near the hind part. (Ad.). 



}.. i ~ni< IM. }!. tiir. 1!. 



Sli.-ll ovate, rather solid, scarcely rimato, whitish : whorls five, 

 transversely grooved and crossed with very tine longitudinal lines; 



