428 Rohrbach, see also Leipzig (Leipzig) GDR : Rabenhorst 2522 Roitzsch (Leipzig) GDR : Rabenhorst 2526 : Nitzschia acicularis Rabenhorst Roitzsch (Leipzig) GDR : Rabenhorst 2526 : Nitzschia acicularis U. Smith Roitzsch, see also Leipzig (Leipzig) GDR : Rabenhorst 2526; see also Wurzen (Leipzig) GDR : Rabenhorst 2526 Rollsdorf (Hale) GDR : Kützing 42 : Achnanthes brevipes Rollsdorf (Halle) GDR : Kützing 42 : Achnangthes intermedia Rollsdorf (Halle) GDR : Kützing 42 : Achnanthes subsessilis Kützing Rollsdorf (Halle) GDR : Kützing 74 : Exilaria fasciculata Greville Rollsdorf (Halle) GDR : Kützing 76 : Gomphonema minutissimum Greville Rollsdorf, see also Eisleben (Halle) GDR : Hauck & Richter 48; see also Mansfelder See (Halle) GDR : Hauck & Richter 48 Roma (Lazio) Italy : H.L. Smith 645 : Cymbella obtusa Gregory Roma (Lazio) Italy : H.L. Smith 645 : Cymbella obtusa Meneghini Roma, see also San Giacomo (Lazio) Italy : Ekart, ser. 2, 669 Romarimontem[?] (Vosges[?]) France : Mougeot & Nestler 1398 : Fragilaria mesodon Ehrenberg Romarimontem[?] (Vosges[?]) France : Mougeot & Nestler 1398 : Odxisodium mesodon Kützing Romarimontem[?] (Vosges[?]) France : Mougeot & Nestler 1400 : Conferva pectinalis Dillwyn Romarimontem[?] (Vosges[?]) France : Mougeot & Nestler 1400 : Fragilaria pectinalis Ralfs Romarimontem[?] (Vosges[?]) France : Mougeot & Nestler 1400 : Himantidium pectinale Kützing Romarimontem[?] (Vosges[?]) France : Mougeot & Nestler 1499 : Himantidium gracile Ehrenberg Romsdalen, see Romsdal Fjord (Møre og Romsdal) Norway : Cleve & Möller 132; H.L. Smith 661; Rabenhorst 2379 Romsdal Fjord (Møre og Romsdal) Norway : Cleve & Möller 132 : Cymbella anglica Lagerstedt Romsdal Fjord (Møre og Romsdal) Norway : Cleve & Möller 132 : Cymbella norvegica Grunow Romsdal Fjord (Møre og Romsdal) Norway : Cleve & Möller 132 : Cymbella obtusiuscula Kützing v. [unnamed] Romsdal Fjord (Møre og R聘sdal) Norway : Cleve & Möller 132 : Cymbella reinhardtii Grunow f. major Romsdal Fjord (Møre og Romsdal) Norway : Cleve & Möller 132 : Encyonema gracile Ehrenberg v. lunatum Romsdal Fjord (Møre og Romsdal) Norway : Cleve & Möller 132 : Encyonema lunatum (U. Smith) [Van Heurck] Smith Romsdal Fjord (Møre og Romsdal) Norway : Cleve & Möller 132 : Fragilaria undata W. Smith Romsdal Fjord (Møre og Romsdal) Norway : Cleve & Möller 132 : Gomphonema gracile Ehrenberg v. [unnamed] Romsdal Fjord (Møre og Romsdal) Norway :stclev & Möller 132 : Navicula biceps Gregory v. [unnamed] Romsdal Fjord (Møre og Romsdal) Norway : Cleve & Möller 132 : Navicula borealis Kützing Romsdal Fjord (Møre og Romsdal) Norway : Cleve & Möller 132 : Navicula brebissonii Kützing v. angusta Romsdal Fjord (Møre og Romsdal) Norway : Cleve & Möller 132 : Navicula crassinervia Brébisson Romsdal Fjord (Møre og Romsdal) Norway : Cleve & Möller 132 : Navicula major Kützing v. [unnamed] Romsdal Fjord (M tore og Romsdal) Norway : Cleve & Möller 132 : Navicula viridis v. [unamed] Romsdal Fjord (Møre og Romsdal) Norway : Cleve & Möller 132 : Stauroneis amphicephala Kützing Romsdal Fjord (Møre og Romsdal) Norway : Cleve & Möller 132 : Stauroneis phoenicenteron Ehrenberg Romsdal Fjord (Møre og Romsdal) Norway : H.L. Smith 661 : Fragilaria undata W. Smith Romsdal Fjord (Møre og Romsdal) Norway : Rabenhorst 2379 : Meridion circulare C. Agardh Romsdal Fjord (Møre og Romsdal) Norway : Rabenhorst 2379 : Odontidium hiemale Kützing Ronpré, see Remiremont (Vosges) France : Mougeot 13 Rorschach (Sankt Gallen) Switzerland : Wartmann & Schenk 128 : Diatomia ehrenbergii Kützing Rorschach (Sankt Gallen) Switzerland : Wartmann & Schenk 341 : Cymbella helvetica Kützing Rorschach (Sankt Gallen) Switzerland : Wartmann & SchDotk 341 : Cymb,ella maxima Nägeli Rorschach (Sankt Gallen) Switzerland : Wartmann & Schenk 341 : Fragilaria capucina