In contrast, HalH4, produced by Hfx. mediterranei R4 (ATCC 33500), also isolated from a solar saltern near Alicante, Spain was the first halocin discovered.
A HalH4, producida por Hfx. mediterranei R4 (ATCC 33500), tamén illada dunha salina alacantina, foi a primeira halicina descuberta.