Because the sunfish is rarely seen alive by the average person (it spends much of its time in deep, cold water surfacing to bask), artists have historically relied on preserved specimens, poor photographs, or other artists’ work. This game of telephone led to systematic distortions.
The list’s unofficial motto is: "The sunfish is strange, but it is not that strange." To understand the necessity of the errata list, one must understand the victim: Mola mola . This fish is a biological anomaly. It can weigh over 2,200 kilograms (2.4 tons) and yet it has no caudal fin (tail fin) in the traditional sense. Instead, it has a pseudocaudal structure called a clavus . Mola Errata List
Clavus_Zero compared 75 images of Mola mola from Wikipedia, stock photo sites, and encyclopedias. They found that 92% contained at least one major anatomical error. The post went viral within niche natural history circles, and the term was born. It has since been maintained by the American Society of Ichthyologists and Herpetologists (ASIH) as an unofficial reference for science illustrators. Why the Mola Errata List Matters Beyond Illustration You might ask: Does it really matter if a cartoon sunfish has a tail? Because the sunfish is rarely seen alive by
The next time you draw a sunfish, or even simply look at a painting of one, consult the list. Ask yourself: Where is the clavus? Is that mouth smiling? If the answer is wrong, you know where to go to make it right. This fish is a biological anomaly
In the world of digital art, natural history illustration, and scientific publishing, few documents wield as much quiet power as an errata list. For most, the term conjures images of dry academic footnotes or minor typographical corrections in a textbook. But for illustrators, marine biologists, and the dedicated fanbase of the Mola mola (the ocean sunfish), the Mola Errata List is something far more dramatic: a legendary, crowd-sourced manifesto that exposed a century of artistic and scientific misrepresentation.