N0.1574. WEST AMERICAN PYRAMIDELLID.E— BALL AND BARTSCH. 501 



summit, ornamented by strongly elevated, moderately broad, rounded 

 retractive axial ribs, which become somewhat flattened toward the 

 summit and peripher}" of the turns. There are about 22 ribs upon 

 the second, 20 upon the fifth and the penultimate turn. Upon the first 

 they are very weakly expressed. Intercostal spaces broad, almost 

 double the width of the ribs. Sutures strong-l}" impressed. Periphery 

 and base of the last whorl well rounded, marked by the continuations 

 of the axial ribs which extend feebly to the umbilical region. Entire 

 surface marked by numerous closely placed spiral striations. Aper- 

 ture pyriform, posterior angle acute, columella almost straight, 

 obliquely inserted, slightly rev^olute. 



The unique type (Cat. No. 196221, U.S.N.M.) was collected by 

 Rev. G. W. Taylor at Banks Island, British Columbia. It has 9 post- 

 nuclear turns and measures: Length 5.7 mm., diameter 1.4 mm. 



TURBONILLA (PYRGOLAMPROS) VICTORIANA, new species. 

 Plate XLIV, tig. 6. 



Shell elongate-conic, wax yellow to light brown. Nuclear whorls 

 and the early succeeding turns eroded in all the specimens examined. 

 Post-nuclear whoils quite high between the sutures, somewhat con- 

 cave in the posterior two-thirds of the exposed portion, only slightly 

 contracted toward the periphery and faintly shouldered at the sum- 

 mit; ornamented b}^ low, rounded, somewhat sinuous axial ribs, which 

 are about as wide as the shallow intercostal spaces. Sutures well 

 marked. Peripher}" and base of the last whorl somewhat inflated, 

 marked by weak continuations of the axial ribs which extend feebly 

 to the umbilical region. Entire surface crossed by numerous, wavy 

 spiral striations. Aperture rather elongate, oval, outer lip thin; 

 columella moderately long, decidedly twisted and somewhat revolute 

 in its free anterior portion; the twist at its insertion appearing as a 

 fold. 



The type (Cat. No. 126660«, U.S.N.M.) was collected by Dr. C. F. 

 Newcombe at Victoria, Vancouver Island, British Columbia. It has 

 the last seven and a half whorls and measures: Length 7 mm., diame- 

 ter 2.1 mm. Ten additional specimens were collected by Rev. G. W. 

 Taylor, at Departure Bay, Vancouver Island, British Columbia, -t of 

 which form Cat. No. 196220, U.S.N.M. 



This species appears nearest related to Turhon.'dla {Pi/iyolantprox) 

 nevjcombei Dall and Bartsch, but is readily distinguished from that 

 form bv its concave whorls. 



