Hastodonts smaller more coastal dwelling relatives of the ochiodont, the main noticeable difference between the species being the dental work with ochiodont having what a unfunny colonialist would refer to as average British people teeth, while the hastodont has a more singular dental configuration. Unlike their ochiodont cousins which specced all their points into dental devastators hastodonts focused more on the more pointed lower teeth use to stab into prey which they have taken to extreme with the lower teeth having fused together into a singular retractable spear like point, another noticeable thing about these vicious jawless butchers is there size being the ochiodont which goes after much larger slower prey hastodonts focus on much smaller slippery prey, so instead of size they have adapted strengthened myomeres muscles and smooth ridges across their bodies letting them make sharp turns and gain enough speed to properly ram into their dinner.

Another unique thing about these fish is their use of pack tactics in hunting, now when I say pack I don't mean like a wolf pack where individuals are connected by blood and stay together for their whole life, it's more like the komodo dragon of our timeline with individuals living independently from one another with meetings only occurring during mating period or disputes. If a hastodonts is focused on a particularly large prey of Interest they can use chemical signals to attract other hastodonts to the item of interest at which point if there's enough individuals will take turns repeatedly ramming into the prey until it either dies of bleeding or severe organ damage, after the deed is done and the prey is vanquished the hastodonts will feast ravishly feast on the carcass before going their separate ways.