Lissoclinum bistratum (Sluiter, 1905)
publication ID |
https://doi.org/ 10.6620/ZS.2020.59-19 |
DOI |
https://doi.org/10.5281/zenodo.12822193 |
persistent identifier |
https://treatment.plazi.org/id/13473026-FFCD-612D-A5E1-EAF9FA0984A2 |
treatment provided by |
Felipe |
scientific name |
Lissoclinum bistratum (Sluiter, 1905) |
status |
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Lissoclinum bistratum (Sluiter, 1905) View in CoL
Specimens: NMNS-8141-007 (Maobitou), -008 (Gongzibi), -009 (Jialeshuei).
Colonies were flat, irregularly shaped sheets and usually green due to the Prochloron distributed in the common cloacal cavities ( Fig. 3A View Fig ). The peripheries and the substratum side of the colony sheets were white due to globular spicules densely distributed in the tunic ( Fig. 3B View Fig ).
The present species shares many morphological features with Lissoclinum timorense (Sluiter 1909) , and the absence of the stellate spicules distinguishes L. bistratum from L. timorense ( Kott, 2001) . Monniot and Monniot (2001), however, considered the variability in the spicule composition to be intraspecific and proposed that L. timorense be assigned as a junior synonym of L. bistratum . Because there were no stellate spicules, the present specimens were identified as L. bistratum sensu stricto. There were no records of L. timorense from Taiwan, although this species is widely distributed in the tropical west Pacific from the Ryukyu Archipelago to GBR. The coral reefs in the Ryukyus are usually barrier reefs, and L. bistratum and L. timorense are often found at the same site; L. bistratum inhabits the reef flat and reef edge, while L. timorense inhabits the back reef. The reefs in Taiwan are mainly fringing reefs and lack back reefs, and the difference in reef structure is probably why L. timorense has never been recorded from Taiwan.
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