Archeterokrohnia

Archeterokrohnia is a genus of chaetognaths in the family Heterokrohniidae.The total body length excluding tail fin 28.5; the tail section is 55.2% of the tail fin; head blunt when hooded, triangular after preservation, head with 3.5 mm. Furthermore, the eyes are absent, the trunk section is orange throughout in life, and the organism exists around 3200 m below sea level.

Species

 * Archeterokrohnia docrickettsae Thuesen & Haddock, 2013
 * Archeterokrohnia longicaudata (Hagen & Kapp, 1986)
 * Archeterokrohnia palpifera Casanova, 1986
 * Archeterokrohnia rubra Casanova, 1986