Twelve new species of two genera Smenospongia and Cacospongia (Demospongia: Dictyoceratida: Thorectidae) from Korea Author Sim, Chung Ja Author Lee, Kyung Jin Author Kim, Young A text Journal of Species Research 2016 2016-02-29 5 1 31 48 http://dx.doi.org/10.12651/jsr.2016.5.1.031 journal article 10.12651/JSR.2016.5.1.031 2713-8615 13136330 8. Smenospongia varispina n. sp. ( Fig. 8 ) Type specimen. Holotype ( NIBRIV0000321372 ), Korea : Jeollanam-do , Shinan-gun , Heuksan-myeon , Gageodo Island (Gukhuldo), 20 Jul 2007 , Lee KJ , by SCUBA diving, depth 20 m , deposited in the NIBR . Description. Thick cushion shape, size up to 13 × 8 × 3 cm . Surface, have low sharp conules, without membrane, and covered with many algae and other animals. Small oscules, 1-2 mm in diameter, open at top of sponge. Colour, beige in life turns to dark brown. Texture firm and compressible. Skeleton: Primary fibres near surface, 150-200-300 μm in diameter, cored with only spicules, and dense spicules protrude out of fibres. Secondary fibres, 70-100 μm in diameter. Choanosomal primary fibres, 100-300 μm in diameter, and secondary fibres, 40-100 μm in diameter with rare spine. Etymology. The specific name, varispina , is named after cushion shape of the sponge. Remark. This new species is similar to Smenospongia spinulosa n. sp. in primary fibres with spine, but differs in numerous spine.