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AuthorsP.K.L. Ng, A. Sasekumar
TitleA new species of Polyonyx Stimpson, 1858, of the P. sinensis group (Crustacea: Decapoda: Anomura: Porcellanidae) commensal with a chaetopterid worm from Peninsular Malaysia
JournalZoologische Mededelingen
Volume67
Year1993
Issue33
Pages467-472
ISSN0024-0672
KeywordsCrustacea; Decapoda; Porcellanidae; Polyonyx vermicola spec. nov.; Chaetopteridae; Polychaeta; worm commensal; Peninsular Malaysia
AbstractA new species of porcellanid crab, Polyonyx vermicola, belonging to the P. sinensis group is described from Selangor, Peninsular Malaysia. The species is an obligate commensal of tubes of the chaetopterid worm Sasekumaria selangora Rullier, 1976 (Polychaeta). Polyonyx vermicola is differentiated from all congeners by its small size, possessing a more rectangular carapace, proportionately longer carpus on the larger cheliped, strongly gaping cheliped fingers, the tips of which are turned outwards, the outer surface of each cheliped fingers lined with a row of small granules, and having the ventral margin of the third ambulatory propodus armed with strong spinules.
Classification42.74
Document typearticle
Download paperpdf document http://www.repository.naturalis.nl/document/150213