Review of the Cirolana ‘pleonastica-group’ (Crustacea: Isopoda: Cirolanidae) with description of four new species from the Indo- Malaysian region
Sidabalok, Conni M.
Bruce, Niel L.
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Four new species and Cirolana curtensis Bruce, 1986, all of the here diagnosed Cirolana ‘pleonasticagroup’ (previously known as Cirolana ‘tuberculate-group’), are described and redescribed from Singapore, Indonesia, and Australia. All species are coral-reef dwellers. Two of the new species are locally endemic in Singapore and two in Indonesia. The Cirolana ‘pleonastica-group’ is characterised by the absence of rostral point; dorsal surface of at least pereonites 6 and or 7, pleonites (usually 3–5) and pleotelson with transverse rows of nodules and tubercles ornamentation; pleotelson lateral margins straight or weakly to moderately sinuate and the posterior margin narrow, truncate or narrowly rounded; penial process mostly opening flush; uropodal exopod lateral margin with widelyspaced and acute robust setae. A list of species of Cirolana ‘pleonastica-group’ worldwide is provided