lANTHTNA. SIGARETUS. STOMATELLA. 'JS 



favourite. They are marine, though so fragile 

 and transparent. The animal floats upon the 

 surface of the sea, by means of a vesicular ap- 

 pendage to the foot, which, it is said, may be 

 inflated or contracted at pleasure. lantliina 

 shines by night. /. communis is found in 

 abundance in the Atlantic and in the Mediter- 

 ranean. 



" The family Macrostoma contains, 



Sigaret us Helix ? 



Stomatella. 



Stomatia. 



Haliotis Haliofis, sea-ear. 



'* These genera form a beautiful family, and 

 all bear a resemblance to the human ear. 



" Sigaretus is white and pearly ; the shell is 

 enveloped in the folds of the mantle belonging 

 to the animal. There are several species, one 

 or two of which were ranked among the Helix 

 race. 



" Stomatella is also very pretty ; the shells 

 are pearly. *S'. auricula^ from New Holland, 

 has the appearance of a little HaUotis. 



" Stomatia. is a small genus. 



" With the genus Haliotis you are already 

 acquainted. The animal appears to be very 



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