It appears to be a genetic mutation of sorts that survived for a few years in the depths of Mexican waters.
https://metro.co.uk/2020/02/20/weird...each-12271659/
https://i.postimg.cc/XvNQCtp9/PRI-137744086.jpg
https://i.postimg.cc/zBV7dWwB/Captur...5-09-44-28.png