Phylum Chaetognatha Leuckart, 1854 - chaetognaths Genus Sagitta Quoy & Gaimard, 1827 Sagitta planctonis Steinhaus, 1896 see Solidosagitta planctonis (Steinhaus, 1896) Sagitta planctonis f. planctonis Steinhaus, 1896 see Solidosagitta planctonis (Steinhaus, 1896) Sagitta planctonis f. zetesios Fowler, 1905 see Solidosagitta zetesios (Fowler, 1905)