2023 Missouri Laws 10.125 – Crayfish, official state invertebrate

2022 Missouri Laws 10.125 – Crayfish, official state invertebrate

2020 Missouri Laws 10.125 – Crayfish, official state invertebrate

2018 Missouri Laws 10.125 – Crayfish, official state invertebrate

2016 Missouri Laws 10.125 – Crayfish, official state invertebrate

2015 Missouri Laws 10.125 – Crayfish, official state invertebrate

2014 Missouri Laws 10.125 – Crayfish, official state invertebrate

2013 Missouri Laws 10.125 – Crayfish, official state invertebrate

2009 Missouri Laws 10.125 – Crayfish, official state invertebrate