Tag Archives: Patula bilamellata (Sowerby)

Helenodiscus bilamellata (Sowerby)

Saint Helena Diskus Snail (Helenodiscus bilamellata)  

The Saint Helena Diskus Snail was described on the basis of subfossil shells, that were found on the island of Saint Helena, these shells were found among the remains of several other snail species, all of which are now extinct.  

The shells of this species reached an average size of 0,8 cm in diameter.  


Depiction from: ‘G. W. Tryon; H. A. Pilsbry; a.o.: Manual of Conchology. Second Series: Pulmonata Vol. 8, Helicidae Vol. 6. 1892’  

(public domain)


edited: 21.03.2018