532 Verrill and Bush — 3Iarine Mollusca of the Bermudas. 



This species appears to be more nearly related to 0. nitens 

 Jeffreys than to any other described Odostomia. 



It is larger, stouter and less fusiform with a broader and relatively 

 shorter aperture, with the columellar fold stronger and situated 

 more anteriorly. 



Common in the dredged shell-sand. 



Odostomia ovuloides C. B. Adams, 1850. 



Plate LXIV. Fig. 14. 



Odostomia ovuloides C. B. Adams, Contr. to Conch., No. 7, p. 109, 1850. 

 Odostomia kevigata d'Orbiguj, L'lle de Cuba, i, p. 227, Atlas, pi. xvii, figs. 



7-9, 1853. Morch, Syn. Moll. Mar., p. 166, 1875. Tryon, Manual Concli., 



viii, p. 357, pi. 78, f. 44, 1886. 



Three examples from the shell-sand are identified as this species. 



Odostomia lubrica, sp. nov. 



Plate LXIV. Fig. 15. 



Shell white, smooth, polished, rather stout-ovate, rapidly tapered, 

 acute, composed of five whorls besides the small, abruptly upturned 

 nucleus. Suture deeply impressed, the whorls being slightly angu- 

 lated just below it. Whorls evenly convex; body-whorl relatively 

 large, swollen, with the base wellrounded, but not produced. 

 Aperture broadly ovate ; outer lip broadly and evenly rounded, not 

 angulated anteriorly. Columellar margin sinuous, with a distinct 

 plication within the aperture. Umbilical chink small, but distinct. 



Length of the single perfect specimen, 2.2™°^ ; breadth, about 

 1.2™™. 



Several other examples, imperfect and worn, but having a some- 

 what angular body- whorl, are doubtfully referred to this species. 



From the shell-sand. 



Subgenus Cyclodostom.ia Sacco. 1892. Tj'pe, C. Muiinensis Sacco. 

 Cyclodostomia Sacco, Mem. Eeale Ace. Sci. Tiirino, xlii, 2d series, p. 628, 1892. 



" Shell small, more or less conic. Whorls angular sometimes and 

 near the suture above with a small but distinct cingulum. Columella 

 uniplicate." 



