Translation 2816
Translation 2816
Translation 2816
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44<br />
I. Epivalve with 16 plates (8 pre-equatorial plates, 4 accessory<br />
plates, and 4 apical plates).<br />
Occurs in peat-bog waters.<br />
G1. uli ;inosa 1.<br />
I1. PSpi.valve with ].4 plates (8 pre-equatorial plates, 4 accessory<br />
plates, and 2 apical.plates). G1.._ 2retiosa 2.<br />
Three freshwater species are known: (162)<br />
A. Chromatophores present:<br />
1. Transverse groove crosses the left margin of the cell at the<br />
level of the equator or at two thirds of the total height of<br />
the ce11, Longitudinal groove extends to the posterior margin.<br />
1. H. nasutum<br />
?I. Transverse groove crosses the left margin of the cell at three<br />
quarters of the total height. Longitudinal groove extends only<br />
slightly beyond half of the posterior part of the body.<br />
3. H. ochraceum<br />
B. Chromatophores. absent. Transverse groove crosses the left margin<br />
of the cell beneath the equator. Longitudinal groove? Cells are (163)<br />
of the Hen. nasutum type.<br />
2. H. berriardinense<br />
Ka for the identification of the species<br />
A. Structure of covering unknown.<br />
1. Chromatophores present.<br />
(a) With stigma.
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