CHARYBDEA

CLASSIFICATION OF CHARYBDEA

PHYLUM :- COELENTRATA (Tissue grade, diploblastic and acoelomate. )

CLASS :- SCYPHOZOA (Medusa well developed, hydroid reduced.)

ORDER :- CUBOMEDUSAE (Bell margin bent inward forming false velum.)

GENUS :- Charybdea

GEOGRAPHICAL DISTRIBUTION

  • Tropical and subtropical regions.

HABIT AND HABITAT

  • It is marine Jelly-fish. It is found in warm shallow waters inhabiting bays, harbours, shore of continents, islands and open sea. It is strong graceful swimmer, voracious feeder on fish.

CHARYBDEA

GENERAL CHARACTERSTICS OF CHARYBDEA

  • Commonly called as Sea wasp.
  • It is best known genus of cubomedusae.
  • Shape of the body is more or less cubical in fonn with a deep ball having somewhat flattened top.
  • Body divisible into ex-umbrellar and sub-umbrellar surfaces. Exumbrellar surface contains manubrium. 
  • Sub-umbrellar surface contains four per-radial rhopalium.
  • Each rhopalium has 2 large eyes and 2 small ocelli clearly visible in section. 
  • In sub-umbrellar surface, each comer of the bell contains a expanded structure In inter-radial position called as pedaIia. Pedalia contains inter-radial tentacle.
  • Various structures seen in section of rhopalium are fibers of collenchyme, gastiodermis, nerve tissue ganglion cell retinal cells. Vitreous body of retinal cell, pigment zone and lens. 
  • It is noted for the virulence of its sting.
CHARYBDEA

IDENTIFICATION

  • The animal contains pedalia, rhopalium and all above characters and hence it is Charybdea.
CHARYBDEA
CHARYBDEA
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