Comb Jelly
There are roughly 90 different extant species of he phylum Ctenophora, or comb jelly in waters around the world. The bodies are mostly made of jelly, and they have a single cell layer on the outside and another in the internal lining.
Adults vary wildly in size, running for a few mm to as much as 1.5 meters in size. The comb jelly moves in a rippling motion by using 8 rows of plated in their body. The majority of the species catch their prey by using a pair of long tentacles.