Seems you had fun with this one (Rowan ha ha )
1. Sand Dollars
2. Tentacles
3. Fish
4. Molluscs
5. Acorn and goose
6. It has a row of light-producing orgns down each side of the body
7. Eels
8. Conchology
9. It swims close to larger fishes AS THO' to guide them.
10. Filtering small particles from water.
Very well done folks. Will have to sort out another one, next time more for the ladies. cheers Penny.