. L'eau douce et Heliozoa Rhizopoda britannique. Rhizopoda ; Heliozoa ; animaux d'eau douce. 126 D'EAU DOUCE BRITANNIQUE RHIZOPODA. minute plaques angulaires de taille assez réguliers, en vue de face formant un triangle irrégulier, la partie antérieure de l'aperture apex tronqué qui a une marge légèrement courbé, l'apex postérieur produit en de courts processus contondant latéralement, de marge divergentes entre ces sommets d'essai ; convexe en vue de côté, apparaissent très étroite- ment comme " a cocked hat tourné edgeways.* lorsque le plasma sont extrudés pseudopodes qui occupe environ un tiers de l'intérieur de l'essai, pseudop

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. The British freshwater Rhizopoda and Heliozoa. Rhizopoda; Heliozoa; Freshwater animals. 126 BRITISH FRESHWATER RHIZOPODA. minute angular plates of fairly regular size; in front view forming an irregular triangle, the anterior apex truncated for the aperture which has a slightly curved margin, the posterior apices produced into short blunt processes diverging laterally, margin of test between these apices convex; in side view very narrow, appear- ing like " a cocked hat turned edgeways.* Plasma when the pseudopodia are extruded occupying about a third of the interior of the test; pseudopodia few, rather long, simple or slightly branched, linear, ex- tremities obtuse.. Fie. 100.âBroad views of two examples of Nebela triangulata. After Lang, loc. cit. (slightly reduced), x ? (The magnification given by the author appears to be incori-eot.) Dimensions: " Much smaller " than either " Difflvgia â proteiformis" or Lesquereusia spiralis (with which it was associated). (?) Neighbourhood of Reading, Berkshire {F. A. Lang). Carrig Mountain and Oonnemara, Ireland {W. Archer). Lang, in his description of this species, says that the carapace "is so remarkably transparent that the * The Oonchvilina when active usually have the fundus above and the aper- ture below, but they are more frequently represented in the I'everse position, to which this remark applies.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Cash, James, 1839-1909; Hopkinson, John, 1844-1919. joint author; Wailes, George Herbert, 1862-. London, Printed for the Ray Scociety

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