Review of the fish-parasitic genus Cymothoa Fabricius, 1793 (Isopoda, Cymothoidae, Crustacea) from the southwestern Indian Ocean, including a new species from South Africa Author Hadfield, Kerry A. Author Bruce, Niel L. Author Smit, Nico J. text Zootaxa 2013 3640 2 152 176 journal article 10.11646/zootaxa.3640.2.2 4851424b-bd46-4639-8515-fe673e3a3d4c 1175-5326 219572 96951F3E-87FC-481A-BA01-BA9E41CE4D43 Cymothoa hermani Hadfield, Bruce & Smit, 2011 Cymothoa hermani Hadfield, Bruce & Smit, 2011: 57 –68. Remarks. Cymothoa hermani can be identified by the unique bulbous ornamentation on pereonite 1, anterolateral angles on pereonite 1 rounded and produced past frontal margin of cephalon, long and slender dactyli and the numerous lobes on pleopods 4 and 5 in the ovigerous female. The only other Cymothoa species known from the region, C. eremita , differs from C. hermani by the lack of the characteristic bulbous ornamentation on pereonite 1 that is present in C. hermani . Cymothoa eremita also has a dorsally visible and wider cephalon with the anterolateral margin of pereonite 1 not produced past the cephalon; irregular posterior margins of the pleonites with pleonite 5 appearing to have very distinctly produced sub-medial points; and more acutely produced lateral pereonite margins than in C. hermani . Hosts. Only known from Leptoscarus vaigiensis (Quoy & Gaimard, 1824) (see Hadfield et al . 2011). Distribution. Known from the type location, off Miwi Island, Zanzibar , Tanzania (Hadfield et al . 2011).