^^-^^^^>^^^JVOTI^ON I'YRAMIDELLIIKE-DALL AND BAR1\SV1I. 323 



PYRAMIDELLA (PHARCIDELLA) MOFFATI, new name. 



Obeliscu, clamlu. A. Adams, in Sowerby The.s., 1854, p. 811, pi. clxxi fi.. 3S 

 not Obehsciis c/arulus (Ferussac) Beck, Index Moll., 1838, p. 62. '*'■'' 



The Pfetel collection contains a specimen of thi.s «pecies labeled Ohe- 

 /^^cus achates Gould, see crocaius, Japan. In the aperture of this shell 

 a specimen of AnaeAls diminuta C. B. Adams was firmly wedded 

 which IS at home on the west coast of Central America an"d Mexico' 

 ihe J ^ra,udel/a therefore very likely belongs to the same region." 

 ilie type ot O. davidus A. Adams came from Acapulco. Mexico. 



PYRAMIDELLA (TRIPTYCHUS) NIVEUS Mdrch. 

 Triptiichus nireus mmQ.H, Mai. -Bliitt., XXII, 1875, p. 158. 



Four specimens in the Pastel collection, labeled Parthenia ,a^lata A. 

 Adams Japan, belong to this species. It is quite likely that the local- 

 ity cited isiwrong, and that the specimens came from the West Indies 

 the home of P. {T.) niveus. ' 



PYRAMIDELLA (TIBERIA) PULCHELLA A.Adams. 

 Plate XXV, %. 4. 



Oheliscus jndchellm A. Adams, in Sowerby Thes. Conch., 1854, p. 808, p]. clxxi. 



Shell very regular elongate-conic, yellowish-white, marked by two 

 moderately broad, equal spiral zones of brown, one at the periphery 

 the other on the anterior portion of the base. Nuclear whorls two and 

 one-half, moderately large, smooth, about one-third immersed in thefirst 

 ot the post-nuclear whorls, having their axis at right angles to the axis 

 of these. Post-nuclear whorls polished, flattened, slightly shouldered 

 at the summit, marked only by faint lines of growth; posterior half 

 between the sutures pale yellow, anterior half white, bounded at the 

 periphery by the spiral chestnut band which can be seen at the suture 

 ot all the whorls. Periphery of the last whorl slightlv angular. Base 

 short, rounded, marked by many lines of growth which are much 

 stronger here than between the sutures: the basal color-band is sepa- 

 rated from the columella by a narrow white zone. Aperture subovate 

 somewhat channeled at the junction of the outer lip and the colum- 

 ella, outer hp thin, apparently not fortified within by varices or spiral 

 amelL^; columella straight, rather strong, reflected, biplicate, the pos- 

 terior fold large, lamellar, a little below the insertion of the columella 

 the anterior one much more oblique and but feeblv developed, parietal 

 wall covered by a very thin callus. 



The Berlin collection contains four specimens, all from Japan; one 

 belonging to the P^tel collection is described and figured. It has lost 



