The image is a vintage-style illustration of a fish. The fish is depicted in profile, showcasing its streamlined body and distinctive features. It has a deep blue coloration, with intricate detailing to represent scales and fins. The fish has a prominent dorsal fin and a forked tail. Its eye is round and appears to be a golden color. The mouth is slightly open, revealing a small pink interior. The fish is positioned against a pale yellow background, which gives the illustration a classic, scientific feel. Below the fish, the word 'Xenaculla' is written in a delicate script.