CONCHOLOGY. 



turn. Papilla nitidissima nativam papillae uberis muliebris formam 

 exprimit, coronaque ambitur radiata,"^ Seba 3. t, 64. /. 5, 6. 



* The papilla or teat which is here mentioned by Seba, is the rounded 

 spire of the shell which always bears that appearance : and the radiation by 

 which it is encircled, the dark fuscous streaks which traverse the lower 

 whorl or whorls of the spire, and which, when the shell is held in one posi- 

 tion seem to diverge from the teat as a radiation from a center. 



