32r) PliocEEDIXCS OF THE XATIOXAL MUSEUM. vol. xxx. 



iiiucli more oblique posterior on(»; purietal wall apparently without 

 callus. 



The specimen described and tioured is from the Pietel collection 

 and comes fi'oui Japan. It was wrongly labeled AgatJia ^utidula A. 

 Adams. The specimen has eight postnuclear whorls and measures: 

 iono-. <; nnn.: diam. 2.7 nun. 



PYRAMIDELLA (TIBERIA) DUNKERI, new name. 



Plate XXV, lig. 2. 



OdoMomia fn.Hciato Duxker, Mai. Bliitt., VI, 1860, p. 234; also Moll. Japonica, 

 1861, p. 17, pi. II, fig. 2; not (Odostomia) ChrysalUda fasciata Carpenter, Cat. 

 Maz. Shells, 1856, p. 428. 



Shell elongate-conic, acuminate, perforate, subdiaphanous, marked 

 bv two moderately broad golden yellow bands, one encircling the 

 whorls a little posterior to the periphery; the other, which is about 

 double the width of the tirst, is situated a little anterior to the middle 

 of the base. In addition to these two bands a narrow white zone sur- 

 rounds the whorls a little posterior to the middle between the sutures. 

 Nuclear whorls two and one-half, small, half embedded in the first of 

 the later whorls, having their axis at a right angle to the axis of these. 

 Postnuclear whorls moderately rounded, decidedly shouldered at the 

 summit, almost tabulated, marked by man}- faint lines of growth and 

 closely placed microscopic spiral striations, which are equally well 

 developed between the sutures and on the base. Periphery and ])ase 

 of the last whorl well rounded. Aperture small, suboval; posterior 

 angle o])tuse, outer lip thin, no internal lirations visible (these may 

 prove to be present when a specimen is ground down); columella 

 slender, reflected biplicate; posterior fold lamellar, situated a little 

 anterior to the insertion of the columella, anterior fold very oblique, 

 weak; parietal wall covered b}' a mere tilm of callus. 



The type is from Ousima, rlapan. It has eight postnuclear whorls 

 and measures — long. .5 nun.; diam. 2.3 mm. 



PYRAMIDELLA ( COSSMANNICA) ACICULATA A. Adams. 



Plate XXIV, figs. 1, 8. 



Oheliscus acindtttns A. Ada.m.s, in Sowerby Thes. Conch., lS."i4, p. 809, pi. riA'Xl, 

 figs. 21, 36. 



Shell elongate-conic, tapering to an extremely slender apex, polished, 

 white, with a slight suflusion of brown at the apex and near the aper- 

 ture, Nucleai- whorls two, large compared with the early postnuclear 

 whorls, helicoid, depressed, smooth, having their axis almost at a right 

 angle to the axis of the later whorls and extending beyond the outline 

 of these on the left side. The flr.st three postiuiclear whorls are well 



