Technically not a sea creature since it’s a fresh water fish, but the Golden Trout is native to the High Sierras.
How about turtles as a shout out to LOGO
I have been off the iOS scene for nearly 2 years now having been working in Unity for AR work.
However for obvious reasons ARKit interests me greatly.
Can the RW Team let me know if the iOS 11 by Tutorials will cover the introduction of Swift 4 for the novice or will there be some other title released at the same time?
Basically I will need to get up to speed ASAP and am sure knowing Swift 4 will be key
Thanks
I think the blowfish would be fine for the book.
11 starfish for the cover! 
Sting Rays are cool creatures that patrol shallow waters and hang out on ocean floors. Hanging out with this book will get you on the ground floor of the new exciting world of VR by learning about the ARKit and a raft of other new features in iOS 11.
How about 11 sea horses? Just seems “right” somehow. Can’t explain it 
I’d like a Portuguese Man-of-war with 11 tentacles!
Jelly Fish. they are see thru - just like ARKit!!!
EEL
E-ELeven, of course. Looking forward to the book!
Some type of jellyfish. They can be quite beautiful!!
I say two eels to form the number 11 for iOS 11.
I like to see ‘Eagle ray’ on the cover 
Royal Grama Basslet
Eleven seahorses of different colour. 