. The British freshwater Rhizopoda and Heliozoa. Rhizopoda; Heliozoa; Freshwater animals. PONTIGTJLASIA ELISA. 161 [(p. 64) 4. Pontigulasia elisa (Penard) Schouteden. (Figs. 107-109.) Difflugia elisa Penaed in Arch. Sci. nat. (3) XXIX (1893), p. 177, t. iii, f. 7. Pontigulasia incisa Rhumbler in Zeits. wiss. Zool. LXI, 1 (1895), p. 105, t. iv, ff. 5, 22-25; Penaed Faune Ehiz. Leman (1902), p. 315, ff. 1-6; Aveeintzev in Trudui Obslich. XXXVI (1906), 2, p. 169. Pontigulasia elisa Schoutbdbn in Ann. Biol. Lacustre I, 3 (1906), p. 345 (note). 107 108. 109 Figs. 107-109.—Pontigulasia el
. The British freshwater Rhizopoda and Heliozoa. Rhizopoda; Heliozoa; Freshwater animals. PONTIGTJLASIA ELISA. 161 [(p. 64) 4. Pontigulasia elisa (Penard) Schouteden. (Figs. 107-109.) Difflugia elisa Penaed in Arch. Sci. nat. (3) XXIX (1893), p. 177, t. iii, f. 7. Pontigulasia incisa Rhumbler in Zeits. wiss. Zool. LXI, 1 (1895), p. 105, t. iv, ff. 5, 22-25; Penaed Faune Ehiz. Leman (1902), p. 315, ff. 1-6; Aveeintzev in Trudui Obslich. XXXVI (1906), 2, p. 169. Pontigulasia elisa Schoutbdbn in Ann. Biol. Lacustre I, 3 (1906), p. 345 (note). 107 108. 109 Figs. 107-109.—Pontigulasia elisa .- 107, lateral view; 108, dorsal view; 109, pseudopodia with sand-grains embedded. After Ehumbler {loc. cii.). x 200. Test pyriform laterally, in transverse section oval but becoming more nearly circular towards the aperture; covered with sand-grains, diatoms, etc.; the constric- tion, about two-thirds from the crown, marked exter- nally by a deep notch extending about half way across it in broad view, being the line of attachment of each end of the diaphragm, which extends, narrowing towards the centre, across the constriction bisecting the opening through which the pseudopodia pass. Plasma normal, occupying about half the cavity of the test; nucleus with numerous circular nucleoli of nearly equal size; pseudopodia palmate, very irregular in outline, some- times much expanded and bearing close to the aperture several sand-grains or other adventitious matter. VOL. II. 11. 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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