The evolutionary history of the diverse lifestyles adopted by urochordates has attracted intense interest because it may effect the evolutionary history of vertebrates. Here, we report the complete mi...
The reality of the sexual long cycle concerning Doliolum nationalis in Mediterranean waters off Villefranche (Ligurian Sea) is confirmed with the description of unknown stages for this particular spec...
The protothyroid region in the endostyles of four species of tunicates was examined by means of autoradiography and cytochemistry, at both the light and electron-microscopic levels. To reveal the prim...