scyphozoan मीनिंग इन हिंदी

अधिक: आगे

Scyphozoan jellyfish stings range from a twinge to tingling to agony.
Most hydromedusae have shorter lifespans than the larger scyphozoan jellyfish.
Scyphozoans have no durable hard parts, including no head, no skeleton, and no specialized organs for respiration or excretion.
Scyphozoan and hydrozoan larvae have little yolk and most lack endosymbiotic algae, and therefore have to settle quickly and metamorphose into polyps.
Nematocysts, which deliver the sting, are located mostly on the tentacles; Scyphozoans also have them around the mouth and stomach.
Their diet consists principally of scyphozoans and salps; prowfish use their large mouths to tear chunks from the bells of jellyfish and ctenophores.
Not all jellyfish are obviously " jelly-like . " There are many species of Scyphozoans and very little is known about them.
Shortened forms of this life cycle are common, for example some oceanic scyphozoans omit the polyp stage completely, and cubozoan polyps produce only one medusa.
Hydromedusan jellyfish differ from scyphozoan jellyfish because they have a muscular, shelf-like structure called a velum on the ventral surface, attached to the bell margin.
An "'Oral arm "'is an anatomical structure of " true " sea jellies ( or Scyphozoans ), which belong to the class Scyphozoa.

संज्ञा.

any of various usually free-swimming marine coelenterates having a gelatinous medusoid stage as the dominant phase of its life cycle