54 



GENUS BUCCINUM. 



54. BUCCINUM SUTURAL.E, LAM. The. Sutured Bucdnum. 



it.mjnti 



(Collect. MASS. LAM'.) CHEMN. pi. 125, fig. 1199-1200. 



* PI. XXIV, fig. 96. 



B. testa ovato-conica, laevi, nitida,alba,luteo-nebulosa; anfractibus con- 

 vexiusculis, prope suturas noduliferis, supremis longitudinaliter plicatis ; 

 apertura Isevi ; labro postice denticulate. 



Shell ovate, conical, smooth, shining, whitish, sometimes of 

 a flesh color, marked with spots, and oftentimes with reddish 

 lines or flammules ; spire composed of seven slightly convex 

 whirls, with noduliferous tubercles near the sutures ; the first 

 four or five are marked with small longitudinal folds ; the 

 others have pretty fine, distant, transverse brown lines, as 

 many as eight or nine upon the lowest whirl : upon the base 

 of this are observed delicate furrows. Aperture ovate, round- 

 ed, white, smooth, terminated above by a small, dilated canal, 

 which is formed by a re-entering angle from the right lip, and 

 a transverse tooth from the left lip. The right lip is effuse, 

 arcuated, thin, armed at the base with five or six small den- 

 ticulations. The left lip consists of a plate which laps over a 

 little upon the body of the shell, and forms a small keel. 

 Columella smooth. 



Length 13 lines. Width 6 lines. 

 Inhabits the coasts of the Isle of France. 



This shell so strongly resembles the B. glans, that it ought, 

 unquestionably, to be united to that species. It has all its 

 characteristics, and the only differences which can be perceived, 

 are doubtless attributable to age or locality. The shell we have 

 just described is much smaller, the color less deep, the transverse 

 lines less marked ; the tubercles near the sutures are also very 

 prominent upon the last whirls, whilst they are but indistinctly 

 seen, or disappear altogether in the BUCCINUM glans. 



