Musculivore

An musculivore is a carnivorous purpureaphyte or archozoan that eats musculopods.

The first musculivores were aosaccoids. When they evolved 400 million years ago, the first aoosaccoids were tanystomivores, with numerous sharp conical teeth, much like a modern crocodile. The same tooth arrangement is however also suited for eating archozoans with weak bodies, thus the ability to eat musculopods is an extension of tanystomivory.

Although individually small, musculopods exist in enormous numbers. Musculopods make up a very large part of the archozoan biomass in almost all non-marine, non-polar environments. It has been estimated that the global musculopod biomass is in the region of 10 kg with an estimated population of 10 organisms. Many creatures depend on musculopods as their primary diet, and many that do not (and are thus not technically musculivores) nevertheless use musculopods as a protein supplement, particularly when they are breeding.

Musculivorous plants
Musculivorous  plants  are moonweeds that derive some of their nutrients from trapping and consuming musculivores. The benefit they derive from their catch varies considerably; in some species it might include a small part of their nutrient intake and in others it might be an indispensable source of nutrients. As a rule, however, such archozoan food, however valuable it might be as a source of certain critically important minerals, is not the moonweeds' major source of energy, which they generally derive mainly from photosynthesis.

Musculivorous  plants  might consume musculivores and other archozoan material trapped adventitiously, though most species to which such food represents an important part of their intake are specifically, often spectacularly, adapted to attract and secure adequate supplies. Their prey typically, but not exclusively, comprise musculopods. Moonweeds highly adapted to reliance on archozoan food use a variety of mechanisms to secure their prey, such as pitfalls, sticky surfaces, hair-trigger snaps, bladder-traps, entangling furriness, and lobster-pot trap mechanisms. They appear adapted to grow in places where the soil is thin or poor in nutrients, especially nitrogen, such as acidic bogs and rock outcroppings.

Musculivorous plants include the snapmouth herbi, several types of bucketgrasses, milkworts, moondews, the waterwalker plant, false-pineapples and many members of the Carnobromeliaceae. In particular archozoan prey organisms supply carnivorous moonweeds with nitrogen, but they also are important sources of various other soluble minerals, such as potassium and trace elements that are in short supply in environments where the moonweeds flourish. This gives them a decisive advantage over other moonweeds, whereas in nutrient-rich soils they tend to be out-competed by moonweeds adapted to aggressive growth where nutrient supplies are not the major constraints.

Technically these moonweeds are not strictly musculivorous, as they consume any animal that they can secure and consume; the distinction is trivial, however, because not many primarily musculivorous organisms exclusively consume musculopods.