If you read “A Shadow Over Innsmouth” it mentions some of the villagers basically ending up as sacrifices to the Deep ones.  The implication is of course that they ate them.

Look man… fish man.  Turn about is fair play and I hate to tell you this but I like fish a lot.  It’s not often that you read a story where some horrible monster is coming to get you, but you can’t help but think…..

If that fishman doesn’t get me first I wonder how he’ll taste with some lemon juice and wild rice.

Don’t you judge me.  Technically that’s not cannibalism.