Leiobunum rotundum is chestnut-brown, with a small, smooth, and very long round or oval body and thin black legs, as well as having no separation between the head and the
abdomen. The harvestman's legs can be
self-amputated if it is in danger of
predation, but they do not
regenerate. Although the harvestman has no fangs, poison glands, or silk glands, it can protect itself with the scent glands on the front of its body. The scent glands produce a secretion that repels predators. The species has three different types of
nephrocytes. Numerous large nephrocytes occur in clusters between the muscles in the anterior region of the body. Smaller nephrocytes are scattered throughout the body, often stuck to
tracheoles. The third type of nephrocyte is attached to the heart wall by connective
ligaments. The
morphology of the
tracheae in this species is very similar to that of
Nemastoma lugubre. == Distribution ==