Creature type (Dungeons & Dragons) all animal type monsters are based on real world animals. Creature entries based on mythological, fictional, or nonexistent animals are usually classified as magical beasts (see below). Besides ordinary fish, birds, reptiles and mammals, the animal type is also applied to depictions of dinosaurs, prehistoric animals, and "dire" or specially modified, often larger and scarier, versions of real world animals. Some real world animals are not given the animal type in the game. Examples include arthropods (insects, spiders, etc.) and worms, which the game classifies as "vermin" (see below) and not animals. Mollusks, such as octopuses, are often classified as
Nicobar megapode of the dusky megapode ("Megapodius freycinet"). The exact island from which the original type specimen came was not known and a later specimen from Trinkat Island, described as "Megapodius trinkutensis" is now considered to be indistinguishable from the nominate subspecies. In 1901, W L Abbott collected specimens from Little Nicobar which were described in 1919 by H C Oberholser as a new subspecies "abbotti", distinguished by its darker brown plumage. The species is found only in the Nicobar Islands. This range is so well separated from the main megapode distribution (especially of the genus "Megapodius") that in 1911, it was