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Benson 1966


Plate 27

Figures:
1-2 Pterocanium cf. elegans (Haeckel); 1, left lateral view, VS-R-151a, 1-3cm, S39/3, 300x; 2, right lateral view, focus on thorax having septal rings, VS-R-60b, 3-5cm, T26/0, 300x.

3-5 Pterocanium prosperinae Ehrenberg; 3, right lateral view, VS-R-60a, 3-5cm, Z29/0, 300x; 4, right lateral view, right lateral leg out of focus, VS-R-46b, 1-3cm, N32/4, 300x; 5, left lateral view, VS-R-81a, 1-3cm, E39/3, 300x.

6 Pterocanium praetextum (Ehrenberg); left lateral view, VS-R-34a, 3-5cm, D35/1, 300x.