PLATE XXII. 



VoLUTA Pyrum : testa obovata subcaudata spirse anfractibus 



striatis; apice producto glaberrimo, columella 

 triplicata.— Gm^/. Syst, Nat. T. 1.;?. 6. 8463. 102. 



In the preceding plate (plate 21) we have introduced to the 

 attention of our readers a figure of that truly interesting rarity the 

 reversed Voluta Pyrum, or Pear Volute, or as it is better known in 

 the familiar language of the English collectors by the appellation of 

 the High spired Turnip Shell. The figure there delineated exhibits 

 a frontal view of this shell, in which the characteristic aperture of 

 the mouth is displayed to advantage. A nd in order that nothing on 

 our part may be wanting to complete our observations on this very 

 valuable curiosity, we have been induced to insert in the present 

 instance, a back or posterior view of the same shell. 



We have already entered so fully into the history of this shell 

 in the description of the former plate, as to render it, we may 

 presume, superfluous to dwell upon this subject further in the 

 present instance. Our figure of the reversed shell, as in the former 

 plate, is accompanied by a posterior view of a shell of the usual 

 growth, (covered with its natural epidermis) and by the assistance 

 of this figure, the contrary direction of the spiral wreath in the 

 reversed shell becomes at once too obviously striking to escape 

 attention . 



