They’re Listed as critically endangered, with their quantities declining resulting from overfishing and habitat destruction. Like coelacanth, they've small genetic variation in between populations, producing them much more vulnerable to sickness. The Devil Fish is recognized for its massive, triangular pectoral fins and exclusive horn-like cephalic fins on both side https://www.slideshare.net/slideshow/how-to-set-up-your-first-aquarium-book-online/275795480