I decided to explore the ocean for the first time. All was fine and beautiful and then 2 of these speed demons were right behind me. I don't think I've ever had a bigger jumpscare. So word of advice, always look down :)

Mosa are better

For anyone who has trouble finding these or any other deep sea species on mobile, they usually don’t load until you reach the floor so if you use a species that is quite slow which would cause you to drown without special gear or can’t go very deep because they’ll take pressure damage like basilosaurus you’ll likely never see them. the best thing to do would be to use an ichtyosaurus as they are fast enough to allow you to dive all the way down, explore for maybe 5 seconds then reach the surface in time without using gear plus they are very easy to tame (though they have lost their ability to not get aggroed by anything so be careful)

I named it perro perro but if you counter this idk I just shot mine off my tapejara

Amazing tip- do not try fighting these. Not only do they spawn in packs, their bite does 75 BASE DAMAGE

I saw a group of 3 at the deep edge of the ocean on Cragg’s Island!

Looks kinda like the beta version of Brontosaurus tbh

Why no one say that this thing spawn in group..I mean it spawn 3 at one time :(

This looks like a mutated fish and scary at the same time.

I have gotten fairly close to a few of them on an Ichthy and they didnt become hostile, do they not aggro when you are mounted or something?

You can find 2-4 near underwater caves that are uninhabited.

The only god damn thing that attacks ichthyosaurus.

This guy is the Mosasaurs younger brother/sister but with a long neck CHANGE MY MIND

Good luck finding one of these they are quite rare

Whoever said they live around herb island is wrong I checked because I live on the island and rule the ocean with my bailio

makes the same sound as a rex lmao

I know the 100% spawn location

To kill,

1. Tame argy and craft saddle.

2. Sight a plessi. You can do this by using CrabCam (swipe left) to see underwater.

3. Drop Cooked Prime Fish Meat into plessi territory from argy.

4. The plessi will grab it.

5. Now's your chance! Dive towards the plessi and grab it with your argy.

6. Put the plessi on land, specifically on a hill, so it cannot flop into the water.

7. The plessi will die.

8. Now get off the argy.

9. Use your hatchet.

10. Harvest the plessi's corpse.

11. Now comes my favorite step: open its item cache and see what you got!

12. Is anything useful? Stimberry? Narxoberry? Notice if it is useful.

13. If there is helpful things in the plessi's inventory, then you should consider repeating the process on another plessi.

Up if you find it useful!