NO. 1452. NOTES ON I'YRAMIDELLTD.E—DALL AND BARTSCn. 345 



anterior to the periphery being- extremely wide, full}' double the width 

 of the next. The aperture also is a little more eti'use at the junction 

 of the outer lip and the columella. 



The type has nine post-nuclear whorls, and measures: long-, 4 mm.; 

 diam. 1.2 mm. It belongs to the Psetel collection, and comes from 

 Japan. 



TURBONILLA (MORMULA) PHILIPPIANA Bunker. 



Plate XVIII, fig. 5. 



Turbonilla phiiippiana Dunker, Mai. Bliitt., VI, 1860, p. 289; also Moll. Jap., 

 1861, p. 16, pi. I, fig. 12. 



Shell broadly conic, yitreous to milk-white. Nucleus decollated. 



♦ ■ 



Post-nuclear whorls well rounded, moderately shouldered, crossed by 

 about twenty strong, rounded axial ribs; intercostal spaces rounded, 

 a little wider than the ribs, crossed by nine subequal and subequall}' 

 spaced, moderatel}" broad incised spiral lines which extend up on the 

 sides of the axial ribs. At irregular intervals several axial ribs are 

 fused and enlarged to form a yarix. Peripher}^ and base of last whorl 

 well rounded, the latter marked by the faint continuations of the axial 

 ribs, which scarcely extend to its middle, and twelve well incised, wavy, 

 spiral lines which become wider and more distantly spaced toward the 

 umbilical region. Aperture rather small, subquadrate; posterior angle 

 obtuse; columella short, somewhat straight, twisted; columellar fold 

 not visible in the aperture; parietal wall covered by a thin callus. 



Two specimens are before us; Dunker's type, from Desima, Japan, 

 a poor and much-worn individual and another in the U. S. National 

 Museum, received from A. Adams, collected in Japan and labeled 

 Mo7'mula rissoma X. Adams. These two specimens appear both to be 

 3'oung shells and are absolutely identical. We have therefore described 

 and iigured the more perfect of the two, which we do not believe to be 

 M. rissolna A. Adams. Both have seven and one-half post-nuclear 

 whorls which in the U. S. National Museum specimen No. 126062 

 measure: long. 5.3 mm.; diam. 2.6 mm. Dunker's specimen (type) 

 measures: long. 5.5 nmi.: diam. 2.6 mm. 



TURBONILLA (MORMULA) AULICA, new name. 



Plate XXII, fig. 7. 



Tnrhonilla varicosa Dunkee, Mai. Blatt., VI, 1860, p. 339; also Moll. Jap., 1861, 

 p. 15, pi. II, fig. 9; =? ChenDtilzIa varicosa A. Adams, 1858, not Part hmia 

 {Mormula) varicosa Forbes, Report Aeg. Inv., 1844, p. 136, nor Turh<mill(( 

 varicosa Doderlein, 1892. 



Shell elongate-conic, gently and evenly tapering; flesh-color with a 

 brown base. Nuclear whorls decollated. Post-miclear whorls well 

 rounded, somewhat shouldered, crossed by strong rounded axial ribs, 



