%z C O N C H O L O G Y. 



The finall Blue-rayed Limpet" of our 

 coafts is, when j^oung, thin, horny, and 

 very conical ; when old, thick, flattilh, 

 and miffliapen ; yet its few blue ftreaHs 

 glWfiys ch^raflierife it. 



The Bloody-tooth Nerit is known 

 through all appearances, by the bloods 

 like fpots on its teeth. 



Each volute has fome particular ftreak, 

 band, fpot, or colour, which it preferves 

 through all its ftages, 



Even the Rocks or Murices, the 

 Spiders, and the Winged Shells, whole 

 appearances in their feveral growths, 

 above all other Shells, are fo extremely 

 different, that when young they have 

 narrov>^, fharp, thin, fmooth and evei\ 

 lips, and the opening is pretty clear or 

 free; when old, this lip is greatly ex- 



■ Id. Patella Integra exigua, laevls, cornea, coerulels 

 lineis iniignita. Plate /i^. fig. 4. p. 20. N° 4. 



tended 



