2 54 ^ r ' Adams'* Defer if tion of Aftinia crafficovnh, l$c. 



Turbo 

 divifus. 



Obf Pellucid, whitifo, the fpires fluted, and feparated 

 by an elevated line. 



T. quatuor anfraclibus, bevibus et firiatis ; apertura 



fubovali. 

 Minute. Sea-fand. Linny. 



Obf, Colour white, pellucid, each fpire divided into 

 two parts. The upper one fmooth, the lower one 

 fpirally filiated. 



He; IX 

 tomentofus. H. tefla umbilicata, tribus anfraclibus fetofis. 



Boggy ground. 



Obf. Colour of horn, pellucid, befet with fhort bridles 

 which give the appearance of downinefs. Aper- 

 ture roundifh. 



fulgidus. 



SoRPULA 



fukata. 



H. tribus anfraclibus apertura, marginata rotunda. 

 Minute. Sea-fand. Linny. 



Obf. Variegated with white and bronze, pellucid, 

 within perlaceous. 



S. duobus anfraclibus, profunde fpiraliter fulcatis. 

 On the roots of the Fucus digitatus. 



Obf. Colour greenifh. 



i , 



XXV. Bg- 



