Description. Total body length ranged between 10.8 and 11.5 mm and tail 27.3 - 33.7 % of body length. Hooks 8 - 10. Anterior teeth 14. Slender and transparent body (Fig. 11 A). Small head. One row of stout teeth arranged in fan shape (Fig. 9 B). Collarette and intestinal diverticula absent (Fig. 11 B). Grasping spine abruptly curved (Fig. 8 A). Round eyes with eye pigments in " E " shape (Fig. 11 B). Corona ciliata beginning in front of eyes with round shape (Fig. 11 C). Lateral fins 29.4 % of body length. Starting points of lateral fins 54.3 % and ending points of lateral fins 82.2 % of body length, respectively. One pair of lateral fins only rayed on outer edge, with forward ends equidistant from caudal septum (Fig. 11 A, E). Caudal fin roughly round in shape (Fig. 11 D). Seminal vesicles elongated with anterolateral-edge-opening touching both lateral fins and caudal fin (Fig. 11 D).
Sumber: Taxonomic reassessment of chaetognaths (Chaetognatha, Sagittoidea, Aphragmophora) from Korean waters