VOLUTA.— Plate VII. 



angled, more or less obscurely compressly tubercled 

 at the angle, a little contracted towards the lower 

 part, columella four-plaited; bluish lead-colour, tu- 

 bercles and nodules paler, with irregular close-set 

 black lines descending from the sutures to the angle, 

 beneath neatly banded with irregular interrupted 

 black lines, areas between the bands sparingly 

 flaked with snowy spots, base and columella orange- 

 carnelion, interior of the aperture duU brown-ash. 

 Lamarck, Anim. sans vert. (Deshayes' edit.) vol. 10. p. 889. 



Hab. Swan River, Coast of Australia. 



This species is frequently seen of a discoloured yel- 

 lowish hue, instead of the rich lead-blue tint here re- 

 presented, which is its true character. The tubercles 

 are never absent; they are of an obtuse compressed 

 growth, and not developed into spinose scales as in the 

 V. Norrisii and corona. 



It inhabits the shores of Garden Island, mouth of the 

 Swan River, in great abundance. 



