162 POPULAR BHITISH CONCHOLOGY. 



semblance to the foot of a bird ; the aperture likewise ter- 

 minates in front by a produced canal, and at the back by a 

 part of the two lips running up a whorl or two of the spire. 



The common A. pes-pelicani lives on gravelly bottoms,, 

 in rather deep water, creeping very slowly, and using his 

 feelers freely. Caution marks his entire character, not 

 making one advance until he has secured the last, and deli- 

 berately ascertained what is before him ; he makes his way 

 by slow degrees, and when in captivity is always chary of 

 displaying his beauties to the observer ; not that he need be 

 ashamed of his personal appearance, for his white body, very 

 prettily speckled on the head and horns with bright scarlet, 

 carries a well-sculptured and curiously-formed shell. 



The other species, Aporr/iais pes-carbonis, has a lighter 

 and smaller shell, with shorter spire and longer and more 

 tapering digitations. 



