NO. i4r,2. NOTES OX PYIIAMIDELLID.E—DALL AND BARTSCII. 353 



ODOSTOMIA (PYRGULINA) LECTA, new species. 

 Plate XXII, fig. 2. 



Shell elono^ate-ovate, turrited, shouldered, sutures crenulated, shin- 

 ing, hyaline to milk-white. Nuclear whorls moderatel}' large, deeply 

 oblicjuely immersed in the tirst of the succeeding whorls, only the last 

 half turn of the last volution is visible from the side. Post-nuclear 

 whorls rather high between the sutures, somewhat flattened, the sum- 

 mit of the succeeding whorls falls a little anterior to the periphery of 

 the preceding one, which gives the whorls a constricted appearance at 

 the suture. The whorls are ornamented by strong sublamellar axial 

 ribs, which are thickened and cuspid at the summit; fourteen of these 

 ribs occur upon the tirst, sixteen upon the third, and twenty upon the 

 penultimate whorl. Intercostal spaces broad and rounded, fully three 

 times the width of the ribs, crossed by narrow, incised spiral lines, 

 which are about one-fourth as wide as the space inclosed between them; 

 twelve of these lines occur between the sutures upon the fourth and 

 penultimate whorls. Periphery and base of the last w horl well rounded, 

 the latter attenuated, marked like the space between the sutures by the 

 prominent continuations of the axial ribs and ten incised strong, spiral 

 lines. Aperture suboval (outer lip fractured), columella short, curved, 

 reenforced by the attenuated base, provided with a strong, oblique fold 

 near its insertion; parietal wall covered by a moderatel}^ thick callus, 

 which extends over the umbilical area. 



The specimen described has six post-nuclear whorls and measures: 

 long. 3.4 mm.; diam. 1.5 mm. It belongs to the Pretel collection and 

 was labeled Chr y pallida plicata A. Adams, Japan. It is not C. plicata 

 A. Adams, but may- be one of the following species, of which Adams's 

 description is not sufficiently diagnostic to make identification possible 

 without authentic material: Clirymlllda pujjula, consobrlna^ and casta^ 

 all of which appear to belong to the subgenus Pyrgvlina. 



ODOSTOMIA (PYRGULINA) AMANDA Garrett. 



Plate XVm, fig. 3. 



Odostomia amanda Garrett, Proc. Acad. Nat. Soc.-Phila., 3d ser., Ill, 1873, p. 225. 

 pi. Ill, fig. 47. 



Shell, slender; elongate, conic, milk-white. Nuclear whorls, three; 

 moderately large, helicoid, having their axis at a right angle to the axis 

 of the Liter whorls and scarcely immersed in the first of them. Post- 

 nuclear whorls moderately rounded, somewhat shouldered, ornamented 

 by strong rounded vertical or slightly backward-slanting axial ribs 

 which are thickened at the summit to form small cusps. Sixteen of 

 Proc. N. M. vol. XXX— 06 23 



