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Shell Life 



The Thick Chink-shell {L. crassior) is rather solid, 

 opaque, brownish yellow, turreted, with thick epider- 

 mis ; the spire raised, with blunt tip ; whorls 6 or 

 7, suture deep ; mouth expanded below, with thin 

 lip. The fissure is not always present. The animal 

 is very active, and moves along with a jerking of 

 opposite sides of the foot alternately. Like the 

 Winkles it is fond of getting out of the water into 

 the air. It is rather a local species ; but is widely 

 distributed, and may be found on small weeds below 



Banded Chink-shetl, Lacuna ciira/ica to (enlarged) 



ordinary low-water mark where the bottom is sandy. 



The shell is half an inch long, and less than a third 



in breadth. The Banded Chink-shell {L. divaricatd) 

 is conical, thin, semi - transparent, with 

 slight spiral lines (also present in L. crassior, 

 but there hidden by the epidermis). The 

 colour varies from white to pale brown, 

 usually with four bands of reddish brown ; 

 whorls 6, suture not deep. Fissure wide. 

 The animal is shy and restless, and has the 



same awkward mode of progression as L. crassior. 



