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Figure 1


Fig. 1. Transmission electron micrographs of longitudinal sections of muscle fibres from the transverse muscle mass of the tentacle (A) and arm (B) of Loligo pealei. Note the short sarcomeres and short thick filaments of the tentacle fibres compared with the longer thick filaments of the obliquely striated arm fibres. SR, sarcoplasmic reticulum. Scale bar, 1 µm. From Kier and Curtin (Kier and Curtin, 2002).