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.
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.
IDENTIFICATION
- The animal contains pedalia, rhopalium and all above characters and hence it is Charybdea.
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