. Fresh-water rhizopods of North America [microform]. Rhizopoda; Fresh-water fauna; Rhizopodes; Faune d'eau douce. dP*^"-BWl».i!« ."WT^ 208 niESII WATEK liniZOPODiS OF NORTH Atimlina alrcolata, A. amphora, A. arrolata, A. Florida^, A. moluccentHi, A. rectangu^ari», A. lioberti Miller, ami-J. ;."'irrott/u(o. Elircnbcrj;: Abli. m. 1871, a4(i. iS('<i(7'Tt7/o acan/<V''iom iiiid 6'. miigcra. Klirciibcry: Ibidem, 247. Diffliigia Sliannoniana. KUronbiTU: Zwoito doutscho Nordpularfuhrt, 1874, Taf. lil. Fig. 18. Difflugia subacuta. Ehrcubcrg: Ibidem, lig. 11). Shell
. Fresh-water rhizopods of North America [microform]. Rhizopoda; Fresh-water fauna; Rhizopodes; Faune d'eau douce. dP*^"-BWl».i!« ."WT^ 208 niESII WATEK liniZOPODiS OF NORTH Atimlina alrcolata, A. amphora, A. arrolata, A. Florida^, A. moluccentHi, A. rectangu^ari», A. lioberti Miller, ami-J. ;."'irrott/u(o. Elircnbcrj;: Abli. m. 1871, a4(i. iS('<i(7'Tt7/o acan/<V''iom iiiid 6'. miigcra. Klirciibcry: Ibidem, 247. Diffliigia Sliannoniana. KUronbiTU: Zwoito doutscho Nordpularfuhrt, 1874, Taf. lil. Fig. 18. Difflugia subacuta. Ehrcubcrg: Ibidem, lig. 11). Shell transparent, colorless, mostly regularly ovoid, often oblong ovoid, sometimes flask-shaped; in transverse section circular, and rarely slightly compressed; fundus broad, obtusely rounded, rarely subacute; oral extremity narrowest, often more or less tapering. Mouth truncating the oral pole, circular, surrounded with from four to twelve ? angular, den- ticulate points formed by the lowest circular series of the plates of the shell.* of the shell generally oval or ovate or cordate?, arranged in longitudinal rows iii alternating series, and overlapping at the contiguous borders, so as to produce hexagonal areas included in zones of minute elliptical areolae. Fundus of the shell in the best developed forms mostly provided with from four to six spines, as appendages of certain of the plates, usually nearly equidistant and straight, of variable length and robustness, sometimes divergent, occasionally convergent, not I'.nfrequently irregular; in the smaller and less well developed forms altogether absent. Size.—Ranging from 0 03 mm. long by mm. broad to mm. long by mm. broad. Locality.—The largest and spinous forms in the ooze of ponds, ditches, etc.; the smallest spineless forms among alga?, mosses, and other plants in bogs, meadows, and other moist or damp situations. Pennsylvania, New Jersey, Maine, Florida, Nova Scotia, Wyoming Territory. Euglypha
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Keywords: ., bookcentury1800, bookdecade1870, bookpublisherwashi, bookyear1879
