Smenospongia duokyeo, Sim & Lee & Kim, 2016

Sim, Chung Ja, Lee, Kyung Jin & Kim, Young A, 2016, Twelve new species of two genera Smenospongia and Cacospongia (Demospongia: Dictyoceratida: Thorectidae) from Korea, Journal of Species Research 5 (1), pp. 31-48 : 41-42

9. Smenospongia duokyeo n. sp. ( Fig. 9 )

Type specimen. Holotype ( NIBRIV0000321373 ), Korea: Jeollanam-do, Shinan-gun, Heuksan-Myeon, Gageodo Island (Duokyeo), 20 Jul 2007, Lee KJ, by SCUBA diving, depth 15 m, deposited in the NIBR.

Description. Thick mass, size up to 11 × 7 × 4 cm. Surface, smooth with membrane and indistinct conules. Several small oscules on top of sponge. Colour in life beige turns to dark brownish black. Texture firm and compressible.

Skeleton: Surface primary fibres, 140-200 μm in diameter, ladder-like form, 850-1000 μm in distance, core sands. Secondary fibres, 30-60-90 μm in diameter, uncored. Choanosomal primary fibres, 150-200 μm in diameter, and secondary fibres, 70-120 μm in diameter.

Etymology. The specific name, duokyeo , is named after locality Duokyeo, Gageodo Korea.

Remark. This new species is similar to Smenospongia scalaris n. sp. in ladder-like skeletal structure throughout the sponge, but differs in distance of ladder-like form. This new species is much larger than that of Smenospongia scalaris .

Figures

Fig. 9. Smenospongia duokyeo n. sp. A, entire animal; B, closed surface; C and E, surface skeletal structure; D, choanosome skeletal struc- ture; F, closed primary fibres. Scale bars:A=2 cm, C-E=200 μm, F=100μm.