CONCHOLOGY. 



When this shell is in fine condition, the ground colour is pretty 

 deeply tinged with a yellowish hue ; sometimes the colour is whitish, 

 but, generally speaking, this tint is rather the indication of a shell 

 having the enamel of the outer surface more or less worn away ; 

 most commonly there are two bands of deep fuscous brown, which 

 are variously interrupted or broken into spots surrounding the shell : 

 sometimes the lower point of the shell is also fuscous, and it then 

 appears to have three bands of that colour instead of two. We have 

 seen some few specimens with fulvous, instead of a fuscous band, 

 but those are scarce. The encircling lines of fuscous dots which 

 appear on the intermediate or light spaces between the dark broad 

 bands of fuscous or fulvous are very characteristic, but these, though 

 never large, are sometimes extremely minute, and in shells much 

 worn and injured are liable to be entirely obliterated. 



