. The British freshwater Rhizopoda and Heliozoa. Rhizopoda; Heliozoa; Freshwater animals. 102 BRITISH VEESHWATEB BHIZOFODA. all apparently of siliceous substance. It rarely happens that the plates are all circular, or all oval; more fre- quently they are mixed, Avithout order or proportion, and their edges are well defined. Examples are occasionally met with which approxi- mate on the one side to N. collaris and on the other to N. flabellulimn, but an acquaintance with the varied peculiarities of these species will usually dispel any difficulty which may be felt in differentiating them. Indivi
. The British freshwater Rhizopoda and Heliozoa. Rhizopoda; Heliozoa; Freshwater animals. 102 BRITISH VEESHWATEB BHIZOFODA. all apparently of siliceous substance. It rarely happens that the plates are all circular, or all oval; more fre- quently they are mixed, Avithout order or proportion, and their edges are well defined. Examples are occasionally met with which approxi- mate on the one side to N. collaris and on the other to N. flabellulimn, but an acquaintance with the varied peculiarities of these species will usually dispel any difficulty which may be felt in differentiating them. Individuals met with in places which are liable to get dried up are generally poor and misshapen. 91. 92. 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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