174 CONCHYLIA— DJTHFi?^. 39. 



Var. nebulis angulatis. 



with the clouded marks disposed in angles. 

 Area marmorata. Chemnitz, vii. p. 228, tab. 57, fig. 563. 

 Mus. nost. Dredged in the British Channel. 



Shell an inch in diameter, quite orbicular, flattish, with numerous 

 fine raised decussate lines which are clothed with a short silky 

 brown pile : color yellowish-white, with purple and crimson clouded 

 patches, which are often disposed in zigzag angles, giving the shell 

 a beautifully marbled appearance : inside glossy white, with fre- 

 quently a dark red blotch near the centre : the margin very strongly 

 serrate. 



lummarius. Pectunculus testd lenticulari, umbonibus tumidis, punctis confertis 



5 



rotundatis sanguineis. 

 Shell lenticular, with the beaks prominent, covered with numerous 

 rounded red dots. 



Tab. nosf. 12, fig. 6. 

 Area nummaria. Linn. Syst. Nat. p. 1143. 

 Gmelin, Syst. p. 3314. 

 Turton, Linn. Syst. iv. p. 257. 

 Chemnitz, vii. p. 239, tab. 58, fig. 572. 

 Dillwyn, Descript. Catal. p. 243. 

 Pectunculus exiguus, Isevis, rufis maculis punctim depictus. 



Lister, Conch, tab. 239, fig. 81. 

 Mus. nost. Torbay, and the British Channel. 



Shell about half an inch in diameter, rather convex, very 

 finely decussate, yellowish-white or cream-color with numerous 



