• Welcome to TONMO, the premier cephalopod interest community, and birthplace of #WorldOctopusDay and #CephalopodAwarenessDays. Founded in 2000, we are a large community of experts, hobbyists and enthusiasts, some of whom come together when we host our biennial conference. To join in on the fun, sign up. You can also become a Supporter for just $50/year to remove all ads and enjoy other perks. Follow us on Twitter for more cephy goodness.


  1. tonmo

    New Supporter Perk: Site Search

    As TONMO approaches its 20th year, we have a ton of highly valuable content within our walls of great interest to cephalopod enthusiasts and researchers. With the growth of social media, TONMO has become a resource for others to dive deep to research content, and then represent it in another...