. The British freshwater Rhizopoda and Heliozoa. Rhizopoda; Heliozoa; Freshwater animals. 60 BRITISH FEESHWATER EHIZOPODA. oval, or, from a slight inflation immediately below the constriction tapering down to the narrowed and trun- cated mouth. Surface of the test moi-e or less thickly incrusted Avith sand-grains and other material; in some examples comparatively smooth. Dimensions : Length 125-170 jn. Amongst sub-aquatic mosses at pond-sides, and in wet Sphagnum in marshy places, not frequent. Pad- gate near Warrington; near Towyn, Merionethshire. New Forest, Hants, and Llyn Idwal, N. Wales (
. The British freshwater Rhizopoda and Heliozoa. Rhizopoda; Heliozoa; Freshwater animals. 60 BRITISH FEESHWATER EHIZOPODA. oval, or, from a slight inflation immediately below the constriction tapering down to the narrowed and trun- cated mouth. Surface of the test moi-e or less thickly incrusted Avith sand-grains and other material; in some examples comparatively smooth. Dimensions : Length 125-170 jn. Amongst sub-aquatic mosses at pond-sides, and in wet Sphagnum in marshy places, not frequent. Pad- gate near Warrington; near Towyn, Merionethshire. New Forest, Hants, and Llyn Idwal, N. Wales (6r. S. West). Nant Francon, N. Wales (.7. Hopkinson). 70 71. Pigs. 70 and 71.—Pontigulasia vas: 70, from Llyn Idwal, N. Wales, X 100; 71, from the New Forest, Hants, x 60. From drawings by G. S. West. Prof. Gr. S. West, in the Linnean Society's ' Journal,' vol. xxviii (Zool.), p. 318, records the dimensions of examples found in the New Forest as 470 ju, in length and 380 /a in breadth, and those from Llyn Idwal, he states, were approximately of the same size. These dimensions very much exceed those given by Penard for the species. But it is a variable one. The example figured on Plate XXIII (fig. 1) from Padgate, was remarkably fine and well-formed, but whilst the con- striction was deep and clearly defined, the form differed from Penard's figure of " P. spectahilis " in having the sides of the neck (from the constriction downwards to the mouth) evenly convex instead of straight. There. 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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