While consuming tapwater with high content of ions of ferrum, calcium, magnesium and fluorine the most significant changes are observed in kidneys of the pregnant animals which is expressed in the decreasing of the number of renal corpuscles and their inhomogeneity; increasing of the average size of renal corpuscle and glomerulus.
While comparing the morphometric indices of renal structure of pregnant rats which had consumed tapwater (test 3) with indices of the third group of animals we revealed the increasing of the size of renal corpuscles in 20.
This, first of all, is revealed in formation of renal glomeruluses hypertrophy, renal corpuscles polymorphy and increasing of the size of renal glomerulus and change of the size of proximal convoluted tubule opening.
Only the Plethodontidae lack a renal corpuscle (character 7, state 1) separating the vasa efferentia from the more distal epididymal ducts Too little data are available to recover ancestral state for salamanders in terms of Wolffian ducts without ciliated cells (character 8, state 0) or Wolffian ducts with ciliated cells (character 8, state 1) The branches leading to the Ambystomatidae + Dicamptodontidae + Salamandridae and Rhyacotritonidae possess Wolffian ducts with ciliated epithelial cells, whereas the branches leading to the Plethodontidee and Proteidae do not possess ciliated Wolffian ducts.
The afferent epididymal ducts empty into a renal corpuscle and, thus, are delineated grossly from the efferent epididymal ducts by a renal corpuscle in all salamanders except the Eurycinae (Williams et al.