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- Title
Two new tropical psolid sea cucumbers from the Strait of Johor, Singapore (Echinodermata: Holothuroidea) with a key to Psolidium species from the tropical East Indian-West Pacific region.
- Authors
Joo Yong Ong; Wong, Helen P.-S.; O'Loughlin, P. Mark
- Abstract
Two new psolid sea cucumber species are described from the 2010-2013 Comprehensive Marine Biodiversity Survey (CMBS) of the Johor Straits, Singapore: Psolidium helenae Ong & O'Loughlin, new species and Psolidium wongae Ong & O'Loughlin, new species. Psolidium helenae differs from other tropical Psolidium species by having: a low profile; a band of tube feet around the periphery of the sole up to six wide; an absence of smaller outer marginal tube feet on the sole; a band of mid-ventral tube feet on the sole about five wide; distally spinous cupped cross ossicles present dorsally. Psolidium wongae differs from other tropical Psolidium species by having: low profile; tube feet series around the periphery of the sole up to about 10 wide; an absence of smaller outer marginal tube feet on the sole; an absence of cupped cross ossicles dorsally and ventrally. Psolus fimbriatus Sluiter is referred to Psolidium Ludwig, as are Psolus boholensis Semper and Psolus complanatus Semper. Variety Psolus boholensis var. pandanensis Semper is raised to species status and also assigned to Psolidium. A key to 15 tropical East Indian-West Pacific Psolidium species is provided for: Psolidium berentsae O'Loughlin & Maric; P. boholensis (Semper); P. complanatum (Semper); P. disjunctum Sluiter; P. fimbriatum (Sluiter); P. helenae new species; P. hutchingsae O'Loughlin & Maric; P. mccallumae O'Loughlin & Maric; P. minutum (H. L. Clark); P. pandanensis (Semper); P. parmatum (Sluiter); P. rugosum Koehler & Vaney; P. spinuliferum (H. L. Clark); P. translucidum Koehler & Vaney; P. wongae, new species.
- Subjects
SINGAPORE; JOHOR; SEA cucumbers; ECHINODERMATA; MARINE biodiversity; STRAITS; SPECIES; HYDROGRAPHIC surveying
- Publication
Raffles Bulletin of Zoology, 2019, Vol 67, p206
- ISSN
0217-2445
- Publication type
Article
- DOI
10.26107/RBZ-2019-0017