2fi2 RTSSOID^. 



PHOSiNELLA, Morch. Shell reticulated, aperture profoundly 

 sinuated. Operculum with styliform apophysis, denticulate 

 posteriorly. R. Sagraiana, d'Orb. (Ixxii, 31). 



SCHWARTZIELLA, Nevill. Aperture without basal emargination. 

 B. coronata (Ixxii, 34). 



EATONiELLA, Dall. ( Eatouia, E. A. Smith.) Shell rissoid, 

 smooth ; aperture subcircular, peristome simple, continuous, 

 the labral margin not thickened. Operculum paucispiral, 

 nucleus near the base, with an interior rib or ossicle. Differs 

 from Rissoina in the absence of the basal, faint channel of the 

 aperture and thin lip. Distr. — 3 sp. Kerguelen's Island. B. 

 Kerguelenensis, Smith (Ixxii, 35, 36). 



MiCROSTELMA, A. Ad., 1863. Shell turreted-ovate, rimate ; 

 spire conic ; whorls longitudinally plicate ; aperture oblong, 

 produced anterioi'ly, subcanaliculate ; inner lip thickened, outer 

 lip simple. Distr. — R. daedala, A. Ad. Japan. 



Barleeia, Clark. 



Etym. — Named in honor of Gr. Barlee. 



Distr. — Europe, W. America, etc, B. rubra, Ads. (Ixxii, 38). 



Shell conically turbinated ; whorls rounded, smooth or slightly 

 striated ; aperture oval, entire, rounded in front ; margin sharp. 

 Operculum calcareous, subangular, with an internal rib-like 

 process. 



Operculigerous lobe simple ; foot slightly emarginate poste- 

 riorly. The tentacles in this genus are short, broad, rounded 

 at the tips and not setaceous ; the eyes are large, on inflations 

 at the outer bases of the tentacles ; the rostrum is simple and 

 not cloven ; the foot is emarginate behind, and the operculum 

 lobe is simple. The operculum is subannular as in Rissoella, 

 and is furnished with a similar internal appendage ; Rissoina 

 has a similar appendage, but the operculum in that genus is 

 paucispiral. 



Bacula, H. and Adams, 1863. 



Distr. — B. striolata, H. and A. Adams. China Sea. 



Shell resembling Eulima, but without enamel ; whorls spirally 

 striated, inner lip thickened, as in the next genus, outer lip 

 without a varix, produced either in the middle or somewhat 

 anteriorly. The classification of Bacula in this place is only 

 provisional. 



Keilostoma, Desh., 1848. 



Syn. — Paryphostoma, Baj^an., 1873. 



Distr. — T Cret. and 6 Eocene sp. Europe, India. K. eximia, 

 Desh. (Ixxii, 39). 



Elongate, turriculated, frequently nearly smooth, aperture 

 ovate, oblique, entire, narrow, subcanaliculate behind, truncate, 

 subeffuse anteriorly, smooth within ; both lips thickened, the 



