Pakistan Journal of Biological Sciences1028-88801812-5735Asian Network for Scientific Information10.3923/pjbs.1999.178.181Potamides cingulatus (Gmelin) in a Mangrove Habitat of Karachi, Pakistan]]>KhanM. Atiqullah SaifullahS.M. ShaukatS.S. QureshiNaemullah ChaghtaiF. 1199921The study was conducted for one year on population structure and dispersion pattern of the common gastropod species Potamides cingulatus was conducted in a mangrove habitat of Karachi. Population diversity levels were moderate in summer but maximum in late autumn and winter. It was also revealed that the species consisted of two groups of individuals, which differed from each other in their colour, size-class structure, population diversity and dispersion pattern. It is, therefore, suggested, they may be considered for two different varieties or forms of the species.]]>Dybdahl, M.F. and C.M. Lively,1995Potamopyrgus antipodarum).]]>8385398Healy, M.J.R. and L.R. Taylor,196249557559Jacobsen, R., V.E. Forbes and O. Skovgaard,1996Potamopyrgus antipodarum (Gray) in Denmark using PCR-RAPD fingerprints.]]>26310651070Jones, D.A.,1986Pages: 192Pages: 192Lloyd, M.,196736130Macnae, W.,1968673270Morisita, M.,197113127Myers, J.H.,19787619621Saifullah, S.M.,19821982Saifullah, S.M. and E. Elahi,199224510Saifullah, S.S.,19967263270Snedaker, C.S. and J.G. Snedaker,19841984pp: 251pp: 251Taylor, L.R.,19711971pp: 357-3337pp: 357-3337Taylor, L.R., I.P. Woiwod and J.N. Perry,197847383406Tirmizi, N.M. and S. Barkati,1983Potamides cingulatus form Karachi mangroves.]]>1983Tukey, J.,195829614614