A new species of Acanthomolgus Humes & Stock, 1972 (Copepoda: Cyclopoida) from the Red Sea, Egypt, with an updated key to species

The marine copepod genus Acanthomolgus Humes and Stock, 1972 is composed of 48 species of symbiotic copepods that have been collected from different localities of the Indian, Pacific and Atlantic Oceans. They appear to be host specific to anthozoan cnidarians including Alcyonacea, Gorgonacea and Telestacea. Herein, we describe a new species, A. humesi sp. nov. recorded from the Red Sea, Egypt.

This species differs from its congeners based on the morphology of the prosome and urosome shape, antenna, female and male P5 and caudal rami. An updated key to the known species of Acanthomolgus for both females and males of the genus is presented.