Question Please help to identify this creature - nudibranch? Flatworm?

[Ukmc]

Do they taste any good when you fry them up, perhaps with a smattering of chilli

Mate, it is 2-3 cm long and looks to be paper thin

 

[Ukmc]

If you can upload a more high res image it would help

I tried, but upload process reduced the size of the file. Is there a way around it?

 

[gstrek]

Lined Sole perhaps. The size, edges, color and movement sound right but cannot determine if there is an eye on the front. I have seen them a couple of times in the Cozumel.

(Edited to correct location and description)

 

[CT-Rich]

I am going with flounder, also. it has caudal peduncle and appears to have fin rays.

 

[Searcaigh]

I tried, but upload process reduced the size of the file. Is there a way around it?

Perhaps crop the image a bit more before uploading it.

 

[ColoDale]

Here is one I found this year in Cozumel Jan 2023. I identified it as black lined sole. I can't see lines in yours but it's moving. The tail on yours is not fan shaped but maybe, again, because it's moving. I have another similar one from 2021 in Cozumel that I identified as a naked sole. All these are very small and I don't see them often.

I attached this as full image. Maybe the resolution is better. For most photos I post on SB, the resolution drops.

 

[MaxBottomtime]

You could always upload the video to YouTube and post it here.

 

[Ukmc]

Here is one I found this year in Cozumel Jan 2023. I identified it as black lined sole. I can't see lines in yours but it's moving. The tail on yours is not fan shaped but maybe, again, because it's moving. I have another similar one from 2021 in Cozumel that I identified as a naked sole. All these are very small and I don't see them often.

I attached this as full image. Maybe the resolution is better. For most photos I post on SB, the resolution drops.

View attachment 773767

Saw another one today. It is even smaller than I thought it was. I also shot a video. Will have to figure out how to load it to YouTube…

 

[ColoDale]

Saw another one today. It is even smaller than I thought it was. I also shot a video. Will have to figure out how to load it to YouTube…

Your second one with file name ending in 518 is very similar to the one I posted. I can see eyes on top and the size and tail appear the same. I say some kind of sole. Probably black lined but I am not 100% sure. My Humann and Deloach ID book does not have it and my cursory looks on internet ID sites suggest it is a sole but I haven't dived into that in depth. Many of these sites describe sole in pacific or more northern latitudes and the sole are much bigger (like eating size). I can't say what stage mine or yours is.

 

[rmorgan]

I fiddled around with it and got this far. Didn't really help me reach a conclusion, but although it looks like ColoDale's sole, it's spotted, not lined . . . ???