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A new flatworm (Platyhelminthes: Polycladida) which mimics a Phyllidiid Nudibranch (Mollusca, Nudibranchia) 总被引:1,自引:0,他引:1
L. J. NEWMAN L. R. G. CANNON D. J. BRUNCKHORST 《Zoological Journal of the Linnean Society》1994,110(1):19-25
A new species of polyclad flatworm, Pseudoceros imitatus sp. nov. (Polycladida, Pseudocerotidae), is described from Papua New Guinea and recorded from the Great Barrier Reef, Australia. This polyclad resembles the phyllidiid nudibranch Phyllidiella pustulosa (Cuvier) (Nudibranchia, Phyllidiiae) in size and colour pattern. It is proposed that P. imitatus is a mimic of the aposematic nudibranch in order to avoid predation by reef fish. Mimicry between polyclad flatworms and opisthobranch molluscs is reviewed. 相似文献
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A new species of phyllidiid nudibranch, Phyllidiopsis shireenae,is described. The new species has a middorsal crest insteadof being flattened dorso-ventrally like most phyllidiids. Itsbody is a very pale shade of pink with black bands, and itsrhinophores are salmon pink. The anatomy of the alimentary systemand reproductive system are described. Characters originallyused by Bergh (1875) to differentiate the genus are supportedby this new species. Phyllidiopsis shi-reenae is presently knownfrom coral reef habitats in the extreme western Pacific Ocean.A review of the taxonomic status of the Atlantic specis of Phyllidiopsisis required.
*Present address: Australian Biological and Environmental Survey.Australian National Parks and Wildlife Service, GPO Box 1383,Canberra. ACT 2601. Australia. (Received 15 August 1989; accepted 8 January 1990) 相似文献
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A new genus of phyllidiid nudibranch, Reticulidia, is described.Distinguishing features are the reticulate pattern of smoothridges on the dorsum and the radially arranged, glandular discswhich make up the pharyngeal bulb. Additional features of theforegut are described and compared with other genera. The importanceof the alimentary system for the separation of genera withinthe Phyllidiidae is supported and its validity reinforced bythis new genus. One species, Reticulidia halgerda, is describedas new and differentiated from a second, sympatric species.Reticulidia is presently known from the eastern Indian Ocean,South China Sea and western Pacific Ocean.
*Present address: Australian Biological and Environmental Survey,Australian National Parks and Wildlife Service. GPO Box 1383,Canberra. ACT 2601. Australia. (Received 15 August 1989; accepted 8 January 1990) 相似文献
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