Spadellidae is a family of sagittoideans in the order Phragmophora. Spadellidae prey on plankton and commonly reside in the epipelagic zone of the ocean.
Genera Bathyspadella Tokioka, 1939Tokioka, T. (1939). Three new chaetognaths from Japanese waters. Memoirs of the Imperial Marine Observatory, 7, 129–139. Calispadella Casanova & Moreau, 2005Casanova, J. Moreau, X. (2005). Calispadella alata n. gen., n. sp., the first chaetognath recorded from a hydrothermal vent site (Mid-Atlantic Ridge). Journal of Plankton Research, 27(2), 221–225. Hemispadella Casanova, 1996Casanova, J. (1996). A new genus and species of deep benthic chaetognath from the Atlantic: a probable link between the families Heterokrohniidae and Spadellidae. Journal of Natural History, 30, 1239–1245. Paraspadella von Salvini-Plawen, 1986von Salvini-Plawen, L. (1986). Systematic notes on Spadella and on the Chaetognatha in general. Zeitschrift für Zoologische Systematik und Evolutionsforschung, 24(2), 122–128. Spadella Langerhans, 1880Langerhans, P. (1880). Die Wurmfauna Madeiras. Zeitschrift für Wissenschaftliche Zoologie, 33, 271–316.
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