External anatomical features of an adult female littorinid Littorina Littorea 
(the animal has been removed from the shell): 
  • Viewed from above

  • Viewed from the left-hand side

  • Dissection
Kidney Ultrastructure 
  • Generalized Organization of Kidney 

  • Kidney Epithelial Ultrastructure

  • Renal Particle Transport

  • Mucous Cell

  • Pallial Cavity Epithelial Cells

  • Ciliated Epithelium 

  • Hemocyanin