An ultrastructural study of early germ cells in Mugil (Liza) auratus Risso, 1810 (Teleostei : Mugilidae) Solange BRUSLÉ and J. BRUSLÉ Ann. Biol. anim. Bioch. Biophys., 18 5 (1978) 1141-1153 DOI: 10.1051/rnd:19780604