Pictus cats actually are a large group of unclassified catfish (unnamed) all clumped together under the name pimelodus pictus, the two main one we see in the trade come from Colombia or Peru, the former of which can grow to lengths of 12", the peruvian species only reaches about 6". All the species look very similar in appearance with the only noticable difference being that some species (mainly the colombian) have larger spots which are more spaced out, this morph is often sold as Angelicus pim.