My fish knowledge isn't good, so I search the numbers. Turns out they represent SS-277 Scamp, SS-218 Albacore and SS-217 Guardfish, the subs that responsible for sinking Sazanami historically. Guess even girls like Sazanami will also get PTSD, eh?

Paracite said:

That explains the ||SS|| faces then. And the fish. I was trying to place the numbers to some fish names, but nothing seemed to work...

lol didn't noticed the ||SS|| faces.
Well, I had a hunch they are USN subs since the USN loves to name them with fishes names.
Edit: Sea creatures I should say, since Narwhal and Dolphin technically aren't fish...

That explains the ||SS|| faces then. And the fish. I was trying to place the numbers to some fish names, but nothing seemed to work...