DESCRIPTION. 165 



Shell ovate, with obsolete spines ; transversely 

 striate ; aperture toothless. 



Lister Conch, tab. 957. %• 10. 



Specimen yellowish white, with longitudinal 

 brown rays and spinous protuberances; aperture 

 white with a tinge of pale orange; four raised dots 

 on the interior surface of the outer Hp. 



Inhabits Asia and Africa. 



Fig. 5. M. Javanus, 



Shell tapering, striate, with one row of oblique 

 knots ; anterior part of the outer lip with an in- 

 dentation. 



Lister Conch, tab. 915. fig. 8. 



Specimen cinereous or pale livid, reddish towards 

 the base, immaculate ; beak rather long ; suture 

 of the whorls with a double, tumid line ; cleft in 

 the lip deep. 



Inhabits the Indian Ocean. 



Fig. 6. M. Vertagus. 



Shell having the upper whorls of the spire plait- 

 ed ; beak ascending, columella with one internal 

 plait. 



