Discosoma, Ruppell & Leuckart, 1828

Oh, Ren Min, Neo, Mei Lin, Yap, Nicholas Wei Liang, Jain, Sudhanshi Sanjeev, Tan, Ria, Chen, Chaolun Allen & Huang, Danwei, 2019, Citizen science meets integrated taxonomy to uncover the diversity and distribution of Corallimorpharia in Singapore, Raffles Bulletin of Zoology 67, pp. 306-321 : 313

publication ID	https://doi.org/ 10.26107/RBZ-2019-0022
publication LSID	lsid:zoobank.org:pub:525A71DE-F7FE-4C02-8A1F-6B397A83672B
DOI	https://doi.org/10.5281/zenodo.4575902
persistent identifier	https://treatment.plazi.org/id/A3345D71-C74B-0C4C-9620-186CFB99F9A0
treatment provided by	Carolina
scientific name	Discosoma
status

Treatment

Discosoma sp.

( Fig. 4 View Fig )

Material examined. 4 specimens, ZRC.CNI.1355 (IP444), Sisters’ Islands , Singapore, coll. Y. C. A. Ip, January 2016 .

Description. Body column smooth, uniform in colour. Discal tentacles short, radially extending towards the disc margin. Marginal tentacles smaller, more delicate. Both discal and marginal tentacles of similar colour to the disc. Distinct white ridges present on disc extending from the center to the disc margin. Larger tentacles appear to be present on these ridges. Specimens typically found clustered in groups of three or more.

Remarks. This may represent an undescribed species, but more extensive collections in the region will help ascertain its status in relation to other nominal species. Locally, it is commonly known as the ‘striped’ corallimorpharian and have only been found on Singapore’s southern shores ( Table 2). No intertidal specimens were observed during our collection work. All specimens examined are of subtidal origin.

Remarks. Description follows Carlgren (1943). This species has been recorded in Vietnam and the South China Sea (Fautin, 2009, 2016). Locally, the species is known as the ‘frilled’ corallimorpharian. Specimens only found on the southern shores of Singapore ( Table 2). Both intertidal and subtidal specimens are usually attached to coral rock. On the intertidal they are often observed close to one another in dense groups, sometimes with 10 or more individuals. Morphological identification is incongruent with molecular phylogenetic placement for two specimens collected, REL179 and REL344, which have distinct innermost discal tentacles as star-shaped bumps but are placed within the Rhodactis indosinensis clade.