Illustrated guide to the echinoid (Echinodermata: Echinoidea) fauna of South Africa Author Filander, Zoleka Author Griffiths, Charles text Zootaxa 2017 4296 1 1 72 journal article 32399 10.11646/zootaxa.4296.1.1 ad746972-3837-4f1d-bf97-c09e5d7f1bd5 1175-5326 843325 EFE86EDD-D170-4D97-87D9-3125400713EC Urechinus naresianus A. Agassiz, 1879 Fig. 64 A–D. Urechinus naresianus : A. Agassiz, 1879 : 80 ; A. Agassiz, 1881 : 146 –148. Pl. XXIX, Figs 1–4 . Pl. XXX, Figs 10–14 . Pl. XXXIX, Figs 29–30 . Pl. XL, Figs 56–58 ; Bell, 1904 : 173 ; H.L Clark, 1923 *: 398; H.L. Clark, 1924 : 12 ; H.L. Clark, 1925a : 186 –187; Mortensen, 1950 : 11 –113; Clark & Courtman-Stock, 1976 : 245 ; Schultz, 2010 : 590 , Figs 1011–1013 . FIGURE 64. Urechinus naresianus (SAMC-A22281). A . Map showing distribution. B . Oral view of preserved specimen. C . Aboral view of preserved specimen. D . Side view of preserved specimen. Material examined. MBC-A 022278 ; MBC-A 022279 ; MBC-A 022280 ; MBC-A 022281 ; MBC-A 022282 ; MBC- A 022283 ; MBC-A 022299 ; MBC-A 022300 ; MBC-A 022301 . Identification. Test oval; tapering posteriorly to blunt end, sunken towards peristome. Interambulacra V slightly inflated, hood above periproct. Sub-anal fasciole conspicuous in juveniles, less so in adults. Global maximum size. Maximum test length 50 mm . Global distribution. West coast of South Africa , Atlantic , sub-Antarctic and North Pacific , at 770–4400 m depth ( Schultz 2010 ). Remarks. Differs from Pourtalesia alcocki in lacking the distinctive keel running along the upper side and hook above periproct. The labrum and sternal plates of U. naresianus are not separated, as in P. alcocki .