Suberites rugosa, Kim & Sim, 2021

Kim, Young A & Sim, Chung Ja, 2021, Ten new species of families Suberitidae and Polymastiidae (Demospongia: Heteroscleromorpha) from Korea, Journal of Species Research 10 (2), pp. 168-183 : 175

6. Suberites rugosa n. sp. ( Fig. 7 )

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Type specimen. Holotype (NIBRIV0000881727), Korea: Sasudo, Chuja-myeon, Jeju-si , Jeju-do, 2 Jun 2013, by SCUBA, depth 30-35 m, deposited in NIBR.

Description. Round or cushion shape sponge, size up to 9 × 6 × 4 cm. Surface, not smooth due to thin wrinkles and bundle of spicules with spongin membrane. Oscules open on the top of the surface, 2-3 mm in diameter. Color in life grayish red. Texture firm.

Skeleton: Large and small tylostyles are not easily differentiated. Spicules in choanosomal skeleton arranged irregularly. Sponge has heavy collagen and spicules are not easily separated. Large tylostyles, 650-800 × 5-10 μm and small tylostyles, 150-250-400 × 5 μm.

Etymology. The species name, rugosa, is named after the shape of sponge with wrinkles on the surface.

Remarks. This new species is similar to Suberites waedoensis Shim and Sim 2008 in sponge shape and spicules composition, but differs in surface, texture and color. This new species has grayish red color, and texture firm with extremely rough surface.

Figures

Fig. 7. Suberite srugosa n. sp. A, external morphology; B, C, brush-like surface spicules; D, spicules; E, F, tylostyles. Scale bars: A=1.5 cm, B=100 μm, C-F=50 μm.