The fine structure of myocytes in the sponges microciona prolifera (Ellis and Solander) and tedania ignis (Duchassaing and Michelotti).
D000818:Animals; D003585:Cell Biology; D009119:Muscle Contraction; D009132:Muscles / Q000166:cytology*; D009210:Myofibrils; D011161:Porifera / Q000166:cytology*