216 POPULAR CONCHOLOGY. 



hours/ even when it is painful to walk on them 

 from their great heat : they leave the water 

 early in the morning, but return at night. 

 These circumstances prove that, although ma- 

 rine, many species are amphibious. These 

 shells are often highly iridescent; and the 

 mouth in some species, as the Turbo chrysos- 

 tomus, is of a deep and beautiful golden colour. 



82. Plan axis. — Shell small and oval ; 

 mouth of an oval shape, and having a 

 half-formed notch; left lip flattened, 

 right lip rayed or slightly toothed in 

 the interior ; an operculum. Animal 

 supposed to be like that of the Phasianella. — 

 There are only 2 species, recent. 



These Mollusca are found in India, South 

 America, and the Isle of France, where they 

 abound in great numbers, sometimes almost co- 

 vering the shores in particular spots ; they are 

 often found under stones. The shells are usu- 

 ally transversely grooved on the exterior.* 



83. Phasianella. — Shell oval, solid; mouth 



* Some authors remove this genus to a Zoophagous 

 family, but Rang savs that the animals resemble the Pha* 



sianella. 



