504 CYPR^AD.E. 



with but slight convexit}", ahnost parallel to the course of 

 the opposite lip ; it is obsoletely and closely denticulated 

 at its inner edge. Numerous small pliciform granules, 

 the two lower of which are more distinctly perceptible, 

 may be traced on the lower portion of the pillar lip. Fair- 

 sized examples measure three-eighths of an inch in length, 

 and two-ninths of an inch in breadth. 



The animal when creeping has the mantle, which is 

 tuberculated and scabrous, reflected over the spire and 

 sides of the shell, leaving only the central and upper part 

 of the body- whorl exposed and conspicuous for its white- 

 ness, since the mantle-lobes are speckled and mottled with 

 black, brown, and yellow ; the tubercles are pale or nearly 

 white. The siphon is long, and speckled with orange and 

 yellow. The head is rather broad, not produced in front, 

 and flanked by two long slender tentacula, with slightly 

 clavate tips ; the eyes are large and placed on prominences 

 at their external bases. The foot is lanceolate, truncate, 

 and auriculated in front, pointed behind : its sole is 

 speckled with orange, as are more or less its sides and the 

 head, which otherwise are of a pale flesh-colour. The 

 frontal margin of the foot has a narrow mantle fold. 



This shell, though commonly regarded as rather a scarce 

 one, is universally diffused, though very sparingly, through 

 the British seas, and inhabits all our shores. It ranges 

 from one to fifty fathoms. 



It ranges to the Mediterranean, and was an inhabitant 

 of the British area during the coralline and red crag 

 epochs. 



