Phylum Chaetognatha Leuckart, 1854 - chaetognaths Genus Eukrohnia Ritter-Záhony, 1909 Genus Krohnitta Ritter-Záhony, 1910 Genus Pterosagitta Costa, 1869 Genus Sagitta Quoy & Gaimard, 1827 Genus Spadella Langerhans, 1880