Species include: •
Tryonia adamantina – Diamond Y springsnail, Diamond tryonia •
Tryonia aequicostata – smooth-rib hydrobe •
Tryonia alamosae – Alamosa springsnail, Caliente tryonia •
Tryonia angulata – Sportinggoods tryonia •
Tryonia brevissima – regal hydrobe •
Tryonia brunei – Brune's tryonia •
Tryonia cheatumi – Phantom tryonia, Cheatum's snail •
Tryonia circumstriata •
Tryonia clathrata Stimpson, 1865 – grated tryonia (the
type species) •
Tryonia kosteri – Koster's tryonia, Sago tryonia •
Tryonia margae – Grapevine Springs elongate tryonia •
Tryonia protea – desert tryonia •
Tryonia quitobaquitae – Quitabaquito tryonia •
Tryonia robusta – robust tryonia •
Tryonia rowlandsi – Grapevine Springs squat tryonia •
Tryonia salina – Cottonball Marsh tryonia •
Tryonia seemani (Frauenfeld, 1863) •
Tryonia variegata – Amargosa tryonia ==References==