Translation 2816
Translation 2816
Translation 2816
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36<br />
broadly oval with slight indentation. Longitudinal<br />
groove extends from the apex to the antapical end.<br />
Very frequently the cells are non-motile.<br />
Length 30-50A . . . . . . G. limneticum 27.<br />
IT. Small to very small forms (small forms, 20-259 in lenüthtvery small<br />
f orms , 7-12-15)4).<br />
^a) Posterior part of body extends into three short, corniform<br />
or conical processes. Anter.ior part of body is uniform, and<br />
cupuliform. Measurements: 10-14 x 9-11A .. G. trS_ceratum 28.<br />
(b) Posterior part of body does not extend into corniform processes.<br />
1. The epivalve is often smaller than the hypovalve (often<br />
nearly the same length).<br />
o^)<br />
The epivaïve â.s. hemisphericaï., Lhe hypova3.ve somewûat<br />
thinner (truncatedly conical). Measurements: 8-17 x 6-12A.<br />
(Tropical form?) . . . . . . . . . . . . G.yarians.,29.'<br />
^3) The epivalve is cap--shaped, broadly rounded, as wide as<br />
the hypovalve, but lower. The hypovalve is semicircular.<br />
Measurements 13-14 x 11R. .. .. G. profundum 30-<br />
2. Epivalve and hypovalve approximately the same size. (116)<br />
oC) Cells are ovoid. The epivalve-is half-oval to hemispherical.<br />
The hypovalve is half-oval, projecting a little more<br />
widely. Measurements 20-24 x 16kk. (Tropical form?)<br />
bogoTiense 32.<br />
/3) The epivalve is elongate half-oval, the hypovalve hemispherical.<br />
Measurements 17-18 x 10K .- G. lacustre 32.
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