Picture 1: James Mclaine holds up a ‘humpback blackdevil’ Anglerfish (Melanocetus johnsoni). This fish dangles a bioluminescent light from its forehead in order to lure prey within gulping range. Because this method of feeding is so effective, this fish has little need of swimming muscles and hence the tiny body in relation to its ferocious-looking head.
Picture 2: Oreo fish (Neocyttus rhomboidalis). While the adult stage (top) has a weird prehistoric shape, juveniles (bottom 2 images) have incredibly alien-like features.
Picture 3: As opposed to the other fishes on this post, these juvenile toadfish (Chaunax pictus) look rather lovable!
Picture 4: Lancetfish (Alepisaurus briverostris) have a massive head, incredible teeth and a serpentine body that can attain 2m in length.