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SENSORY CHARACTERIZATION OF EMOLLIENTS 总被引:1,自引:0,他引:1
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The genus Perkinsiana (Polychaeta, Sabellidae) from Antarctica, with descriptions of the new species P. milae and P. borsibrunoi 总被引:1,自引:0,他引:1
Perkinsiana antarctica (Kinberg, 1867) and P. littoralis (Hartman, 1967) are redescribed from holo- and topotypes. Two new species, P. milae and P. borsibrunoi , are described from the Ross Sea (Antarctica) and compared with other species of the genus. Records of P. antarctica are numerous, but re-examination indicates that many of these represent misidentifications: the species may have a distribution limited to subantarctic areas. 相似文献
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CRETELLA MASSIMO; SCILLITANI GIOVANNI; TOSCANO FRANCESCO; TURELLA PAOLA; PICARIELLO ORFEO; CATAUDO ADRIANA 《Journal of Molluscan Studies》1994,60(1):9-17
The external morphology of soft parts of the rare Patella ferrugineaGmelin, 1791 is described, and its relationships with P. caerulea,P. rustica and P. ulys-siponensis are investigated on both morphologicaland electrophoretic grounds. Soft part morphology is a gooddiscriminative tool, but of little help in detecting affinities.Electrophoretic data on 19 presumptive loci suggest that P.rustica is the closest species to P. ferruginea, whereas P.caerulea and P. ulyssiponensis are clustered separately. Meanobserved heterozyg-osities arc higher in P. ferruginea and P.rustica. It is concluded that in case of subdivision of thegenus Patella L., 1758, P. ferruginea and P. rustica shouldbe placed together in the subgenus Patellastra Mon-terosato,1884. (Received 6 January 1993; accepted 23 February 1993) 相似文献