title: Tjaernoeia
text: # Tjaernoeia
  
  Tjaernoeia is a genus of sea snails, marine gastropod mollusks in the informal group Lower Heterobranchia.
  
  Tjaernoeia is the only genus in the family Tjaernoeiidae.
  
  ## Species
  
  Species in the genus Tjaernoeia include:
  
  * Tjaernoeia boucheti Warén, 1991 - from deep water in the northeastern Atlantic
  * Tjaernoeia exquisita (Jeffreys, 1883) - described from Crete, also known from Ghana
  * Tjaernoeia michaeli Engl, 2002
  * Tjaernoeia unisulcata (Chaster, 1897)
  