. The British freshwater Rhizopoda and Heliozoa. Rhizopoda; Heliozoa; Freshwater animals. DIFPLTJGIA BAOILLARIARUM. 29 In bog-pools in Delamere Forest, Dunliam, and else- wliere in Cheshire; freqnent in North Wales. This variety comprehends a number of forms, all of which possess the characters specified, with, however, some modifications. Those incrusted with sand-grains, some of which are figured by Penard (' Faune Ehiz. Leman,' p. 237) may belong to the var. SoloweUldi. It is desirable to confine var. elegans to those which have a chitinous test, are diatom-covered, and more or. Pigs. 4S-50
. The British freshwater Rhizopoda and Heliozoa. Rhizopoda; Heliozoa; Freshwater animals. DIFPLTJGIA BAOILLARIARUM. 29 In bog-pools in Delamere Forest, Dunliam, and else- wliere in Cheshire; freqnent in North Wales. This variety comprehends a number of forms, all of which possess the characters specified, with, however, some modifications. Those incrusted with sand-grains, some of which are figured by Penard (' Faune Ehiz. Leman,' p. 237) may belong to the var. SoloweUldi. It is desirable to confine var. elegans to those which have a chitinous test, are diatom-covered, and more or. Pigs. 4S-50.—Varieties of Difflugia bacillariarum. Figf. 48.—Var. elegans. After Penard (as Difflugia elegans) ' Faune Ehiz. Leman,' p. 237, fig. I. Fig. 49. —Var. teres. After Penar4 (as D. elegans Far. teres) ' Sarc. grands Lacs,' p. 16. Fig. 50.—Var. Solowetukii. After Mereschkowsky (as D. Solowetzlcii) in ' Arch. mikr. Anat.' XVI, t. x, f.'lY. All X about 280. less transparent. Wherever the organism occurs it is usually plentiful, and individuals inhabiting the same water, and even the same drop, exhibit a remarkable range of forms. 10. [?] Difflugia curvicaulis Penard. (Plate XIX, fig. 8.) Difflugia curvicaulis Penakd in Rev. Suisse Zool. VII, 1 (1899), p. 36, t. iii, ff. 2-6; Faune Ehiz. Leman (1902), p. 242, ff. 1-4 (p. 243); and Sarc. grands Lacs (1905), p. 16, f. (p. 17) ; Letakdee in Acta. Soc. Fauna Fenn. XX (1901), 8, p. 12, f. (p. 13) ; AvEEiNTZEV in Trudui. 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 Cash, James, 1839-1909; Hopkinson, John, 1844-1919. joint author; Wailes, George Herbert, 1862-. London, Printed for the Ray Scociety
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