Clathrina primordialis sensu Jenkin, 1908

Jenkin (1908: 436) gave a short description of specimens of Clathrina with actines of 160–180 x 16–20 µm. He assigned these to Haeckel’s Clathrina primordialis (originally as Ascetta). This species is reported widely in the literature but it was recently restricted to the Mediterranean (Klautau & Valentine, 2003; Klautau et al. 2016). The spicule sizes of Jenkin’s material could indicate membership of above described Clathrina sinusarabica Klautau & Valentine, 2003, but the short description is insufficient for a definite conclusion.