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Identification Key: 27

Key Position: 27 Back to (25b)
27 a. Test flask-shaped with a spine on fundus.

SEE Figure 27-1

 27 b. Test flask-shaped without spine on fundus.

Proceed to 28
FIGURE 27-1

Difflugia oblonga Ehrenberg 1832 "spinosa"
Difflugia oblonga "spinosa" REINHARDT et al. 1997, pl. 2, fig. 11
Specimen from Crosswise Lake, near Cobalt, Ontario.

27a