g3 g4 s3 s3 s4 s4 sw sw sw sw sf sf n3 n3 n1 n1 n2 n2 n1 n2 n2 n1 n3 n3 n3 n3 ma ma vnc g3 g4 s3 s3 s4 s4 sw sw sw sw sf sf n3 n3 n1 n1 n2 n2 n1 n2 n2 n1 n3 n3 n3 n3 ma ma vnc s4 s3 sw sw sw sw ma ma vessel s4 s3 sw sw sw sw ma ma vessel

Figure A.2. Abdominal Segment (ventral view) after dissection and staining with methylene blue. Note the ventral nerve cord (vnc), ganglia of the 3rd and 4th segments (g3, g4), nerves (n1, n2, n3), and the superficial flexor muscle (sf) with its attachment point (ma). Abdominal Segment (ventral view) after dissection and staining with Janus green. Note the ventral nerve cord (vnc), ganglia of the 3rd and 4th segments (g3, g4), nerves (n1, n2, n3), and the superficial flexor muscle (sf) with its attachment point (ma). Abdominal Segment (ventral view) after dissection but before staining. Note the ventral nerve cord (vnc), ganglia of the 3rd and 4th segments (g3, g4), nerves (n1, n2, n3), and the superficial flexor muscle (sf) with its attachment point (ma). Abdominal Segment (ventral view) before dissection. Anterior is up. Note the sternites of segments 3 and 4 (s3, s4) and the stumps of the swimmerets (sw). The superficial flexor muscle attaches to the skin at a line (ma).
Image: undissected, dissected, Janus green stained, methylene blue stained. Click to remove labelsadd labels.

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