Narcomedusae

Narcomedusae is an order of hydrozoans in the subclass Trachylinae.[2] Members of this order do not normally have a polyp stage. The medusa has a dome-shaped bell with thin sides. The tentacles are attached above the lobed margin of the bell with usually a gastric pouch above each. There are no bulbs on the tentacles and no radial canals. Narcomedusans are mostly inhabitants of the open sea and deep waters. They can be found in the Mediterranean in large numbers.[3]

Narcomedusae
Bathykorus bouilloni (Aeginidae)
Scientific classification
Kingdom: Animalia
Phylum: Cnidaria
Class: Hydrozoa
Subclass: Trachylinae
Order: Narcomedusae
Haeckel, 1879 [1]
Families

Feeding Behavior

Narcomedusae use their tentacles to catch large, fast-moving prey. They do this by holding their tentacles perpendicular to the direction they are swimming to cover a larger area. If something is caught they bend the tentacle inwards and coil them at the tips to their mouths.[4][5]

References
  1. Narcomedusae World Register of Marine Species. Retrieved 2011-11-07.
  2. Schuchert, Peter; Ville-ge.ch (2005). "Hydrozoan Phylogeny and Classification". Retrieved 24 February 2010.
  3. Order Narcomedusae - Haeckel, 1879 The Hydrozoa Directory. Retrieved 6 November 2011.
  4. Raskoff, .K. Foraging, prey capture, and gut contents of the mesopelagic narcomedusa Solmissus spp. (Cnidaria: Hydrozoa). Marine Biology 141, 1099–1107 (2002). https://rdcu.be/cJjXC Retrieved 3 March 2022
  5. Larson, R., Mills, C., & Harbison, G. (1989). In Situ Foraging and Feeding Behaviour of Narcomedusae (Cnidaria: Hydrozoa). Journal of the Marine Biological Association of the United Kingdom, 69(4), 785-794. https://doi.org/10.1017/S002531540003215X Retrieved 3 March 2022


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