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Translation 2816

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28<br />

larger than the hypovalve. Stigma present.<br />

A ridge arising at the apical pole runs<br />

along the meridi,an. Length, 40<br />

G. leopoliense 3.<br />

p) Cells are still distinctly flattened, though<br />

12 -<br />

they are lesa so and never orbicular.<br />

* .Theepivalve and the hypovalve are nearly<br />

of equal size.<br />

05)2 Cells are roundish, ovoid. The epivalve<br />

is semi-circular,•very slightly<br />

cuspidate at ihe apex, almost truncated.<br />

The hypovalve is trapezoidal,<br />

rounded, slightly emarginated. Long- •<br />

itudinal groove is shallow. No stigma.<br />

Cell measures 29 x 25.5i4. G. Skvortzowii 4.<br />

pi Cells are approximately ovoid. The<br />

epivalve is approximately convexoconical,<br />

asymmetrical, with apex rounded.<br />

The hypovalve is often somewhat<br />

broader and half-oval, with irregular<br />

undulations on the right side (pathological<br />

condition?). Longitudinal groove<br />

12 Some forms under (3 , e.g.. no. 14. and no. 15, would perhaps<br />

be better classified under y .

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