1) Animal order 2) Order cestida 
Cestida is an order of comb jellies. It has one family, Cestidae, with two genera: Cestum and Velamen, each containing one species. Unlike other comb jellies, the body of cestids is greatly flattened, and drawn out into a long ribbon-like shape. The two tentacles are greatly shortened, and two of the four ciliated comb rows are reduced. The unusua...
[n] - ctenophore having short tentacles
order Cestida noun ctenophore having short tentacles; one family