Cubozoa

Cubozoa Rango fossile: Middle Cambrian–present preꞒ Ꞓ O S D C P T J K Pg N
Chironex sp.
Classification scientific
Dominio: Eukaryota Regno: Animalia Phylo: Cnidaria
Classe
Cubozoa Werner, 1973[1]
Orders:
Carybdeida Chirodropida

Cubozoa es un classe de Cnidaria.

• Carybdeida
  • Alatinidae
  • Carukiidae
  • Carybdeidae
  • Tamoyidae
  • Tripedaliidae
• Chirodropida
  • Chirodropidae
  • Chiropsalmidae
  • Chiropsellidae

Le systema nervose del cubomedusa es le plus disveloppate del medusas. Un nervo annular al base del campana coordina lor movimentos de pulsation (characteristica alsi trovate in Coronatae medusas). In vice de simple ocellos con pigmentari cupula, cubomedusas possede ver oculos, con retina, cornea e cristallino.^[2] Lor oculos son arrangiate in gruppos al extremitates de sensorial structuras appellate rhopalios, locate a cata latere del cubo e connectite al nervo annulari.

Cata rhopalio contine duo oculos con lente formante un imagine: le oculo superior vide extra aqua (con un campo de vision adaptate al fenestra de Snell (fr)) e permitte de navigar per examplo in mangrove;^[3] le oculo inferior permitte de evitar objectos.^[4] Cata rhopalio a alsi duo oculos cave detectante le lumine e duo oculos findite detectante le movimentos vertical.^[5]

Cubomedusas ha 6 oculos per rhopalio e dunque 24 oculos in total. Rhopalios remane vertical quando le medusa se displacia.^[3]

1. ↑ Werner, B. (1973). "New investigations on systematics and evolution of the class Scyphozoa and the phylum Cnidaria". Publications of the Seto Marine Biological Laboratory 20: 35–61. doi:10.5134/175791. 
2. ↑ Nilsson, Dan-E. (May 2005). "Advanced optics in a jellyfish eye" (in en). Nature 435 (7039): 201–205. doi:10.1038/nature03484. ISSN 1476-4687. 
3. ↑ ^{3,0 3,1} Garm, Anders (2011-05-10). "Box Jellyfish Use Terrestrial Visual Cues for Navigation" (in en). Current Biology 21 (9): 798–803. doi:10.1016/j.cub.2011.03.054. ISSN 0960-9822. 
4. ↑ Garm, A (October 15, 2007). "Visually guided obstacle avoidance in the box jellyfish Tripedalia cystophora and Chiropsella bronzie". Journal of Experimental Biology 210 (20). 
5. ↑ Garm, A. (2008-03-01). "Unique structure and optics of the lesser eyes of the box jellyfish Tripedalia cystophora" (in en). Vision Research 48 (8): 1061–1073. doi:10.1016/j.visres.2008.01.019. ISSN 0042-6989.