Here is a link or two for you that might help. http://www.wlf.louisiana.gov/fishing/aquatic-species and Texas Freshwater Fishes. I think that Jungle jim is right. He ties a jig with a mallard flank that might just fit the bill. If you serch the threads you can find pictures of them. I have saved the pictures and have tried to duplicate the jig with no success. Jim has it down pat and it looks like a super crappie getter. But look thur the links and I am sure the you can come up with what was in those fishes bellies.

Redman