44 G E N U S B U C C I N M . 



43. BUCCINUM FL.EXUOSUM, LAM. The Flexuous Buccinum. 

 (Collect. MASS. LAM.)' 



PI. XXVI, fig. 106. 



B. testa oblonga, subfusiformi, basi transverse striata,albida,lineis fuscis 

 longitudinalibus flexuosis ornata ; apertura angustiuscula ; labro obsolete 

 striato. 



Shell oblong, subfusiform, spire turreted, conical and point- 

 ed, composed of seven or eight folded whirls, oftentimes tuber- 

 culated. The upper edge of each whirl is very slightly com- 

 pressed, which renders the sutures but little apparent. The 

 lowest whirl, with neither folds nor tubercles, is as large as all 

 the others together, and striated at the base. The ground 

 color of this shell is whitish, and there are delineated brown 

 undulating or zigzag lines, more or less numerous, which de- 

 scend from the top to the base of the whirls. Sometimes other 

 bands upon the upper whirls form delicate rhombs. Aperture 

 rather narrow, attenuated at its lower extremity, and as long 

 as the other whirls united. The columella is smooth, straight 

 and entirely white like the rest of the interior of the aperture. 

 Right lip indistinctly crenulated. 



Length 9 lines. Width 3 lines. 

 Inhabits the seas of the Isle of France. 



This shell, whose coloring is very beautiful, has not yet been 

 figured ; it is remarkable for its elongated form, and for the 

 folds of the whirls, which give it a slight resemblance to our 

 variety of the BUCCINUM costatum, pi. 11, fig. 37; but its form 

 easily distinguishes it : it is more elongated, and never as large ; 

 besides, it has a less effuse aperture, and the surface is marked 

 with longitudinal, undulating lines. 



AW 



