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SEM morphological survey on the egg shell in the italian Anostracans (Crustacea,Branchiopoda)
Authors:Graziella Mura
Institution:(1) Department of Animal and Human Biology, University of Rome, La Sapienza, Italy
Abstract:The screening of the egg shell morphology of all italian species of Anostracans (14) by means of SEM, as well as the analysis of preliminary data on electrophoretical patterns of the adults, concerning the genus Chirocephalus (five species), suggest the need for a reconsideration, from a taxonomical point of view, especially as far as the species of the lsquodiaphanusrsquo group (Ch. diaphanus, Ch. ruffoi, Ch. salinus, Ch. sibyllae) are concerned.In this light, within the above mentioned group remarkable differences have been observed for Ch. ruffoi, whilst for other species like Ch. diaphanus and Ch. sibyllae, conspecificity is suspected. Electrophoretical and reproductive isolation studies, in progress, will provide a clearer understanding of the actual situation.Research carried out with M.P.I. (60%) and C.N.R. (chBr. 83.02549.04 Gruppo di Biologia Naturalistica) financial support.Research carried out with M.P.I. (60%) and C.N.R. (chBr. 83.02549.04 Gruppo di Biologia Naturalistica) financial support.
Keywords:SEM morphology  resting eggs  Anostraca
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