Intestinal diverticular (shown by white arrow) A Aidanosagitta regularis (present) B Ferosagitta robusta (present) C Zonosagitta nagae (absent) D Zonosagitta bedoti (absent).

 
 
  Part of: Choo S, Jeong M-K, Soh HY (2022) Taxonomic reassessment of chaetognaths (Chaetognatha, Sagittoidea, Aphragmophora) from Korean waters. ZooKeys 1106: 165-211. https://doi.org/10.3897/zookeys.1106.80184