Ircinia radicula, Lee & Yoo & Kim, 2017

Lee, Sue Yeon, Yoo, Jung Sun & Kim, Seung Tae, 2017, New species in two genera, Psammocinia and Ircinia (Demospongiae: Dictyoceratida: Irciniidae), from Korea, Journal of Species Research 6, pp. 94-109 : 107

publication ID

https://doi.org/ 10.12651/JSR.2017.6

persistent identifier

https://treatment.plazi.org/id/43238785-AF5F-FFB0-F8B0-FBECFD4DF807

treatment provided by

Felipe

scientific name

Ircinia radicula
status

sp. nov.

11. Ircinia radicula View in CoL n. sp. ( Fig. 11)

Type specimen. Holotype (NIBRIV0000801339), Korea: Duokyeo, Gageodo, Heuksan-myeon , Shinan-gun , Jeollanam-do, 20 Jul 2007, Kim HS, by SCUBA diving, depth 15 m, deposited in the NIBR.

Description. Thick massive sponge, size up to 7 × 7 × 9 cm. Surface have filamentous membrane, distinct conules, and sand patch, but not sand crust. Oscules, 3-5 mm in diameter, opened at protruding mammilated conules. Colour in life dark grey. Texture, firm and compressible. Skeleton: Primary fibres fascicles, over 1,000 μm in diameter, very complex massive fibres that are radially arranged. Primary fibres near surface have sand patches ( Fig. 11F). Secondary fibres showed irregular branch type like roots, and wide fibres like plates, 200-450 μm in diameter ( Fig. 11F), bridged secondary fibres, 100 μm in diameter. Filaments, 5-7 μm in diameter, with terminal knobs, 10-15 μm in diameter.

Etymology. This new species name radicula is named after the complex massive primary fibres which arranged radially with sand patch.

Remark. This new species is sparsely distributed. Specimens had sand over the sponge surface. Massive primary fibres are very complex and radially arranged with sand patches at near surface conules ( Fig. 11D).

NIBR

National Institute of Biological Resources

Kingdom

Animalia

Phylum

Porifera

Class

Demospongiae

Order

Dictyoceratida

Family

Irciniidae

Genus

Ircinia

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