In this article we will discuss about the structure of Cestum with the help of a diagram.
1. It is a marine, solitary and bioluminescent ctenophore commonly called ‘Venus girdle’ and is found in the tropical sea.
2. Body is elongated, ribbon-like is compressed laterally. The colour is green, violet or blue.
3. Comb plates for swimming are eight, four of which are small, and other four are long.
4. Tentacles are reduced, paired, lateral and enclosed in tentacular sheaths.
5. Two rows of small tentacles are present along the oral edge.
6. Meridonial and stomodial canals are anastomosing at the end of body.
7. Statocyst is present at the aboral side.