 Hema-limph, Hema-limph, or Hema-lymph, is a fluid, analogous to the blood invertebrates, that circulates in the interior of the arthropod body, remaining in direct contact with the animal's tissues. It is composed of a fluid plasma in which Hema-limph cells called hemocytes are suspended. In addition to Hema-cytes, that plasma also contains many chemicals. It is the major tissue type of the open circulatory system characteristic of arthropods e.g. arachnids, crustaceans and insects. In addition, some non-arthropods such as mollusks possess a Hema-limphatic circulatory system.