What is "pseudhaemal"

Pseudhaemal \Pseud*h[ae]"mal\, a. [Pseudo- + h[ae]mal.] (Zo["o]l.) Pertaining to the vascular system of annelids.

Pseudh[ae]mal fluid, the circulatory fluid, or blood, of annelids, analogous to the blood of vertebrates. It is often red, but is sometimes green or colorless.

Pseudh[ae]mal vessels, the blood vessels of annelids.