Sarcotragus purpureus, Sim & Lee & Kim, 2016

Sim, Chung Ja, Lee, Kyung Jin & Kim, Hyung June, 2016, Ten new species of genus Sarcotragus (Demospongiae: Dictyoceratida: Irciniidae) from Korea, Journal of Species Research 5 (3), pp. 443-458 : 452

publication ID

https://doi.org/ 10.12651/JSR.2016.5.3.443

DOI

https://doi.org/10.5281/zenodo.13146855

persistent identifier

https://treatment.plazi.org/id/03D7F24C-FFCB-4A4D-FF0A-FC6EFD94F8D2

treatment provided by

Felipe

scientific name

Sarcotragus purpureus
status

sp. nov.

7. Sarcotragus purpureus View in CoL n. sp. ( Fig. 8 View Fig )

Type specimen. Holotype (NIBRIV0000325795), Korea: Gapado Island, Daejeong­eup, Seogwipo­si , Jeju­do, 5 Jul 2015, Kim BI, by SCUBA, Depth 15­18 m, deposited in the NIBR.

Description. Irregular mass, size up to 14 × 9 × 7 cm. Surface covered with filamentous membrane and row conules. Many other animals appeared on surface. Filamentous membrane mixed with fine fibres. Oscules not distinct. Colour pale purple in life. Texture soft and compressible.

Skeleton: Skeletal fibres very loosely arranged, all fibres with large and small perforation. Primary fibres, 400­900­1900 μm in diameter, cylindrical fascicles with large mesh net ( Fig. 8F View Fig ). Wads of filaments on primary fibre fascicles easily come out from fibres because large mesh net. Primary fibres at the base of sponge are very thick and dense fascicles ( Fig. 8G View Fig ). Secondary fibres, 250­400 μm in diameter under surface membrane, and 600­1000 μm in diameter at the base. Filaments, 5 μm in diameter, terminal knobs, 10­13 μm in diameter.

Etymology. This species name purpureus is named after purple colour of sponge.

Remark. This new species is characterized by cylinder shape of primary fibres fascicles with large mesh net. Cylindrical fascicles are filled with wads of filaments, but easily come out from the fibres.

NIBR

National Institute of Biological Resources

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