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Ctenophora (/ t ə ˈ n ɒ f ər ə / tə-NOF-ər-ə; sg.: ctenophore / ˈ t ɛ n ə f ɔːr, ˈ t iː n ə-/ TEN-ə-for, TEE-nə-; from Ancient Greek κτείς (kteis) 'comb' and φέρω (pherō) 'to carry') [6] comprise a phylum of marine invertebrates, commonly known as comb jellies, that inhabit sea waters worldwide.
The Benthic comb jelly was discovered off the coast of Japan at the Ryukyu Trench. It was observed by the remotely operated underwater vehicle Kaikō on a dive into the Ryukyu Trench in April 2002, but the video and images of this unique bottom dwelling ctenophore remained "undiscovered" until several years later.
A beroid ctenophore with mouth gaping at left. Beroidae is a family of ctenophores or comb jellies more commonly referred to as the beroids. It is the only known family within the monotypic order Beroida and the class Nuda. They are distinguished from other comb jellies by the complete absence of tentacles, in both juvenile and adult stages.
Beroe, commonly known as the cigar comb jellies, is a genus of comb jellies in the family Beroidae. [1] ... "First occurrence of Beroe forskalii (Ctenophora) ...
Unlike many other ctenophores, which are relatively slow-moving, Ocyropsis species are agile predators, utilizing their powerful lobes for rapid propulsion. Additionally, they possess the ability to secrete bioluminescent mucus , a defense mechanism that can disorient and deter potential threats. [ 3 ]
Coelenterata is a term encompassing the animal phyla Cnidaria (corals, true jellies, sea anemones, sea pens, and their relatives) and Ctenophora (comb jellies). The name comes from Ancient Greek κοῖλος (koîlos) 'hollow' and ἔντερον (énteron) 'intestine', referring to the hollow body cavity common to these two phyla.
The tentacle side branches are known as tentilla, which in the case of Euplokamis are held tightly in coils except during the act of prey capture. [12] Further, the widely spaced tentillia droplets allow for organisms to be classified to the genus level and are one of the only examples of striated muscle found in ctenophores. [13]
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