Hemicyclopora multispinata is an encrusting bryozoans. Colonies form small patches, composed of a single layer of autozooids. Autozooids are oval and convex. They range in size from 0.5-0.6 by 0.3-0.4 mm, with eight long curved oral spines present.
The species is able to colonise shells and other biogenic carbonates in offshore waters.
This is a poorly known species, but it has been described from the northern Bay of Biscay and Madeira, ranging south to the Azores. It is probably close to its northern limit off the western approaches to the English Channel.