Pakistan Journal of Biological Sciences1028-88801812-5735Asian Network for Scientific Information10.3923/pjbs.2006.1359.1363Melanopsis praemorsa (Thiaridae: Prosobranchia) From Azraq Oasis, Jordan]]>ElkarmiAli Z.IsmailNaim S.7200697A total of 300 specimens of the freshwater gastropod Melanopsis praemorsa (Thiaridae: Prosobranchia) from Azraq Oasis, Jordan, were studied for age, growth and shell morphometrics. Nonlinear and linear allometric analysis, Von Bertalanfis and Richards growth models were used to analyze the results. The results show the life span to be five years and the mean observed lengths of the five age cohorts range from 9.6 to 20.6 mm. The theoretical maximum length of this snail may reach 25.7 and 21.4 mm, respectively while the shell and dry body weights averaged 380.8 and 239.8 mg, respectively. The relationships of the shell length to shell and dry body weights are curvilinear and the relationships of the shell length to shell width, aperture length and aperture width are linear. These results are mainly in agreement with the results reported for other snails with similar relationships between the measured snail parameters.]]>Elkarmi, A.Z. and N.S. Ismail,2006Theodoxus macri (Neritidae: Prosobranchia) from Azraq Oasis, Jordan.]]>9549552Grossowicz, N., N. Sivan and J. Heller,2003Melanopsis from the Pleistocene of the Hula Valley (Gastropoda: Cerithiodea).]]>52221234Heller, J., N. Sivan and F. Bea-Ami,2002Melanopsis from the coastal plains of Israel (Gastropoda: Cerithiodea).]]>37589606Ismail, N.S. and S.K. Abel-Hafez,1983Melanopsis praemorsa (L. 1785) (Thiaridae) snails from Yarmouk river, Jordan.]]>69613626Ismail, N.S. and S.K. Abel-Hafez,1984Melanopsis praemorsa (L. 1785) (Thiaridae) snails in Azraq Oasis, Jordan.]]>33353359Ismail, N.S. and S.K. Abel-Hafez,1987Melanopsis praemorsa (L. 1785) (Thiaridae) snails with larval trematodes in Azraq Oasis, Jordan.]]>361316Ismail, N.S. and S.K. Abel-Hafez,1987Melanopsis praemorsa (L. 1785) (Thiaridae) snails in Yarmouk river, Jordan and its seasonal infection with larval trematodes.]]>5287299Ismail, N.S. and S.M. Bdair,1987Melanopsis praemorsa (L. 1785) (Thiaridae) snails in Jordan.]]>36135141Ismail, N.S. and S.M. Bdair,1989Melanopsis praemorsa (L. 1785) (Thiaridae) snails in Jordan.]]>261520Ismail, N.S. and A.Z. Elkarmi,1999Cellana radiata (Born, 1778) form the Gulf of Aqaba, Red Sea.]]>586169Ismail, N.S., A.Z. Elkarmi and S.M. Al-Moghrabi,2000Drupella cornus (Gastropoda: Prosobranchia) in the Gulf of Aqaba, Red Sea.]]>29165170Ismail, N.S. and A.Z. Elkarmi,20069843847Le-Cren, E.D.,1951Perca fluviatilis).]]>20201210Ostle, B. and R.W. Mensing,1975pp: 206pp: 206Ott, L.,19841st Edn.,pp: 482pp: 482Schutt, H.,19831983