24 GENUSBUCCINUM. 



This large and fine species was much sought for several years 

 since ; it is less rare at present in cabinets ; it is found even 

 2^- inches in length. M. Edoux, a distinguished naturalist, 

 collected in his voyages a large number, which he has lately 

 brought home. 



25. BUCCINUM ACHATINUM, LAM. The Agate Buccinum. 



(Collect. MASS. LAM.) LIST., pi'.' 977*, fig. 13. 

 & fa S^ tr+*j~22prVII, fig. 21. 



B. tesia ovato-elongata, turrita, Isevi, luteo-fufescente ; anfraetibus. con- 

 vexiusculis, superne confluentibus ; spira apice obtusiuscula ; apertura 

 leevi, basi latiuscula. 



Shell ovate, elongated, subturreted, smooth, polished, of a 

 reddish yellow color, composed of seven whirls, hardly con- 

 vex. The suture which separates them is simple, shallow, 

 submargined ; the summit moderately pointed. Pretty promi- 

 nent striae of growth are seen upon the lowest whirl ; aperture 

 ovate, smooth, widened at the middle and strongly emarginat- 

 ed at its base ; columella yellowish, smooth and arched ; a 

 keel, continued from the upper third of the aperture to the 

 base of the right lip ; the space between the keel and the 

 edge of the lip is filled with oblique folds. The right lip is 

 simple, thin, sharp, and slightly effuse towards the middle. 



Length 2 inches. Width 6 lines. 

 Inhabits the Bay of the Cape of Good Hope. 



This species, though common, is rarely found perfect in 

 collections. The specimens which we procure are almost al- 

 ways partially worn, by the violence of the waves by which they 

 have been cast upon the shore. It appears to be found only in 

 very deep water. The animal resembles that of the smooth 

 Buccinum, and like it is blind. 



