11 A I, lA— Plate I. 



u'mix, soiupliiiK'S ;is tli(iiit;li ciKmicllcil. or loiigitiuli- 

 nallv iMviintcly pliwilclv slrintcd, roliimella arclied, 

 calloiis, slightly twisted ; aperture large, sinuated at 

 l)otli ends, lip simple. 

 J//-/i.r I'riamim, Meuselieu, Cat. Mils. Gronov. no. 13.55. 

 BiicciiiKm feus, Martvn, I'liiv, Coneh. vol. iii. pi. 81. 

 Biicciiiiim slercus-pnlioinii . Clicnniitz. 

 Bii'lii itterciis pidiciiiii. (imeliii. 

 liiilimns Priumiis, Vixw^mlxc . 

 Bulla Jielicoides, Broreiii. 

 liiilla Priamiis, Dillwvn. 

 Ampulla Priamus, Bolten. 

 .Ichatina Priamus, Lainavek. 

 Ifeli.r (Cochlicopa) Priauius, F('riissac. 

 Jfalia l/c'licoirles, Eisso. 

 Prinmus slercus-puliciiw, Beek. 

 .Icliatina maculala, Swninson. 



Jfalia slcrcus-jiHlicuiii, neiTiiiaiiiiseii. 

 Priamus JidicoiJi's, Sismoiiila. 

 llatia Priamus, AVoo(hi'artl. 

 Ilab. Atlantic coast of Spain. 



Tiic glairy enamel-like surface of tliLs shell shows tliat 

 it is hii'gely enveloped by the mantle of the animal ; in 

 most specimens the permanent contact of the mantle to 

 the luider surface being widely marked. It is always of a 

 peculiar fulvous-fawn or nankeen colour, sprinkled in the 

 suture and below the angle of the whorls with l)ands of 

 small stjuare distant reddish-chestnut spots. The plicate 

 sinnation of the lines of gro\vth at the suture indicates a 

 development of shell-matter somewhat analogous to the 

 growth of the shells of tlie family to wliich M. Tisclier in- 

 clines to refer it. 



