Brittle stars (Echinodermata: Ophiuroidea) from the continental shelf off Angola and Namibia Author Glück, Franziska U. Author Stöhr, Sabine Author Bochert, Ralf Author Zettler, Michael L. text Zootaxa 2012 3475 1 20 journal article 44454 10.5281/zenodo.282230 bb15ffdf-3104-4e60-932b-77e650707a27 1175-5326 282230 Ophiothrix congensis Koehler, 1911 Fig. 6A, B West African records. Koehler 1911 : 21; 1914: 208; Cadenat 1938 : 358; A. M. Clark 1955 : 48; Longhurst 1958 : 99; Cherbonnier 1962 : 15; 1963: 186; Madsen 1970 : 217; Alva & Vadon 1989 : 833. Material examined. St. 66: dredge sampling, 9°33.702´S , 13°06.018´E ; 1 specimen , 6.5 mm . Depth: 20 m . This species appeared just once. Diagnosis. Unfortunately half of the disc has been damaged and arms are broken. But it is clearly visible that disc scales as well as the radials are densely covered with uniform spinelets, which also extend to the ventral side. Arms carry erect and free arm spines that are quite long, glassy and thorny. There is a cluster of spines at the apex of the jaw but no lateral oral papillae. Distribution. Northern West Africa: Guinea and southwards, southern West Africa: just to the south of Luanda , Angola (9°S) and northwards. It occurs from the intertidal zone to 65 m .