Sea animals

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Across
  1. 1. a sea creature with eight tentacles (= long parts like arms)
  2. 3. a red sea animal with five pairs of legs
  3. 5. a sea animal with a transparent (no colour) body
  4. 8. a very big sea mammal
  5. 9. a sea mammal that is big and grey
  6. 10. a long, thin, snake-like fish
Down
  1. 2. a sea animal that has five arms, Patrick from Spongebob
  2. 4. a black and white bird that cannot fly but can swim
  3. 6. a dangerous fish that has sharp teeth
  4. 7. a small fish that swims in a vertical position and has a head like that of a horse