title: Linucula hartvigiana
text: # Linucula hartvigiana
  
  Linucula hartvigiana, commonly known as clam nut or nut shell, is a bivalve mollusc. Linucula hartvigiana has a brown oval shell and grows up to 6-8mm in width. Linucula hartvigiana is found in unpolluted subtidal and intertidal muddy-sand habitats throughout New Zealand.
  
  