GENUS BUCCINUM. 23 



Length 6 lines. Width 3 lines. 



Inhabits the Indian Ocean upon the coasts of the Isle of 

 France. 



This pretty species, which is almost always transparent, is 

 found in most of the collections ; but its native place is not 

 known with certainty. 



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/ 24. BUCCINUM SERRATUM, DV.FRESNE. The Scrra&e**Buc- . 



i* cinum. '*'* .... 



PI. IX, fig. 28. 



B. testa elongat&, turriculata, violaceo-purpurata,lcevi, nitida, longitudi- 

 naliter superne plicata ; spira acutissima, anfractibus convexis, ultimo multo 

 majore, depressiusculo ; apertura ovato-oblonga, violacea ; labro serrato, 

 serratura rubescente. 



Shell elongated, turreted, of a purple violet color, smooth, 

 brilliant, presenting longitudinal folds only upon the upper 

 whirls ; spire very pointed, composed of nine or ten convex 

 whirls, the lowest of which is much larger than the others. 

 At the upper part of the whirls there is a more or less broad 

 plane regularly crowned with tubercles or folds, which disap- 

 pear with age ; this plane is much more apparent upon the 

 lowest whirl, and is bordered outwardly by a rounded angle. 

 The aperture is ovate, oblong, violet within and feebly striated. 

 The columella is almost straight, extended and projecting a 

 little beyond the lip ; some striae arise from the base of the 

 left lip, and are continued even to the base of the right lip ; 

 right lip denticulated without through its whole length, partially 

 forming the angle towards the keel. The teeth are in number 

 19 or 20, and of a reddish color. 



Length 2 inches 3 lines. Width 9 lines. 

 Inhabits the South Sea, upon the coasts of California. 



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