Critter hanging off Reef Shark Dorsal fin.

[Where2Next]

I am sure I have seen these before - but I spent a bit of time half-ass googling and I can not figure out what this is. At first I just thought it was fish, then maybe little cookie cutter fish - but now I think parasite after looking at my picture. Can you tell me for sure what this is? Photo taken off of Providencia, Colombia. Thank you for your help!

IMG_0512-SMALL

• Where2Next
• Feb 19, 2017
• 6

ID needed for critter on dorsal fin. Thxs!

 

[vincent54]

Looks like Shark Leeches. Below them possible scars from where others were feeding.

 

[tursiops]

Spotted Marine Leech, Stibarobdella macrothela

 

[iamrushman]

wow interesting....thanks for sharing.

 

[Where2Next]

Thanks for the info!

 

[NYCNaiad]

That's very creepy cool.