186 Belgium reinickeana (Navicula) Rabenhorst : Rabenhorst 802 : Dresden (Dresden) GDR rejuncta (Navicula) v. baldjikiana A. Schmidt : Van Heurck 545 : Salchik (Tolbukhin) Bulgaria remotum (Chaetoceros) Grunow & Cleve : Cleve & Möller 125 : Antarctic Ocean replenum (Triceratium) Greville : Cleve & Möller 154, 155 : (Baleares) Spain restituta (Navicula) A. Schmidt : Cleve & Möller 102 : Grip (Møre og Romsdal) Norway reticulata (Biddulphia) Roper : Cleve & Möller 259, 260 : (Trinidad) West Indies reticulata (Biddulphia) Roper : Van Heurck 494 : Mediterranean Sea reticulata (Biddulphia) Roper f. triangularis Grunow : Cleve & Möller 284 : Sri Lanka reticulata (Biddulphia) Roper v. trigona : Cleve & Möller 147 : (Java) Indonesia reticulum (Triceratium) : Van Heurck 543 : Rappahannock River (Virginia) US reticulum (Triceratium) (Ehrenberg) Brightwell : Cleve & Möller 215, 216 : Nottingham (Maryland) US reticulus (Triceratium), see reticulum (Triceratium) : Van Heurck 543 retusa (Navicula) : Van Heurck 137 : Wells (Norfolk) England retusa (Navicula) : Van Heurck 166 : Great Britain retusa (Navicula) Brébisson : Cleve & Möller 255 : Point de Hourdel (Somme) France retusa (Navicula) Brébisson : Cleve & Möller 302 : Cape Vankarem (Russian SFSR) Soviet Union retusa (Navicula) Brébisson : Cleve & Möller 315-318 : Cape Vankarem (Russian SFSR) Soviet Union retusa (Navicula) Brébisson : H.L. Smith 303 : Carteret (Manche) France retusa (Navicula) Brébisson [cf] : Van Heurck 74 : Blankenberge (West-Vlaanderen) Belgium retusa (Navicula) Brébisson v. elongata : Cleve & Möller 258 : Pensacola Harbor (Florida) US reversa (Nitzschia) W. Smith : Rabenhorst 1042 : Rinsumageest (Friesland) The Netherlands reversa (Synedra) W. Smith : H.L. Smith 691 : Duck Creek (Maryland) US reversum (Pleurosigma) Gregory : H.L. Smith 409 : Cherbourg (Manche) France Rhabdonema :: see adriaticum, arcuatum, crozierii, minutum, mirificum, [sp] rhabdosoma (Fragilaria) : Rabenhorst 1504 : Kutzschlin (Severočeský) Czechoslovakia Rhaphidium :: see fasciculatum Rhaphidogloia :: see interrupta, micans Rhapheii :: see amphicros, australis, belgica, bicuneata, castracani, fluminensis, hauckii, hungarica, lanceolata, nitida, rhombus, scutellum, surirella rhapheois (Pinnularia) Ehrenberg : Rabenhorst 2413 : Rewa (Madhya Pradesh) India reinhardtii (Navicula), see reinhardtii (Navicula) : H.L. Smith 312; Van Heurck 79 Rhipidophora :: see abbreviata, anglica, dalmatica, elongata, hyalina, nubecula, oceanica, paradoxa, [sp], superba, tenella rhipis (Auliscus) A. Schmidt v. [unnamed] : Cleve & Möller 276 : (California) US Rhizosolenia :: see alata, americana, eriensis, gracilis, gracillima, hastata, hebetata, imbricata, laevis, setigera, shrubsolii, [sp], striata, styloformis Rhoicones :: see bolleana, garkeana, kurzii, obtusa, siberica, superba Rhioicosigma :: see adriaticum, falcatum, mediterraneum, reinhardtii, robustum Rhoicosphaenia, see Rhoicosphenia : Raciborski 126 Rhoicosphena, see Rhoicosphenia : Van Heurck 352 Rhoicosphenia :: see curvata, [sp] Rhoikoneis, see Rhoiconeis : Cleve & Möller 302, 315-318; H.L. Smith 746 rhombica (Navicula) Gregory : Cleve & Möller 256 : Lymington (Hampshire) England rhomboides (Frustulia) : Rabenhorst 2560 : Mathias Pass[?] (Canterbury) New Zealand rhomboides (Frustulia) Ehrenberg v. saxonica Rabenhorst : Raciborski 123 : Bryukhovichi (Ukrainian SSR) Soviet Union rhomboides (Navicula) : Ekart, ser. 2, 573 : San Bernardino (Piemonte) Italy rhomboides (Navicula) : Kitton B3 : Whissonsett (Norfolk) England rhomboides (Navicula) : Kitton B4 : Whissonsett (Norfolk) England rhomboides (Navicula) : Rabenhorst 2433 : Jumna-Strom (Uttar Pradesh) India rhomboides (Navicula) : Van Heurck 544 : Bemis Lake (New Hampshire) US rhomboides (Navicula) (Ehrenberg) : Rabenhorst 2560 : Mathias Pass[?] (Canterbury) New Zealand rhomboides (Navicula) Ehrenberg : Cleve & Möller 187 : Toukyang Choung (Bengal) India rhomboides (Navicula) Ehrenberg : Cleve & Möller 213 : Santos (São Paulo) Brazil rhomboides (Navicula) Ehrenberg : Cleve & Möller 272, 273 : Degernäs (Orebro) Sweden rhomboides (Navicula) Ehrenberg : Cleve & Möller 291 : (Cornwall) England rhomboides (Navicula) Ehrenberg : Cleve & Möller 324 : Atanek [?], Greenland rhomboides (Navicula) Ehrenberg : H.L. Smith 313 : Willington (Connecticut) US rhomboides (Navicula) Ehrenberg : Mougeot 204 : Remiremont (Vosges) France rhomboides (Navicula) Ehrenberg : Mougeot 208 : Remiremont (Vosges) France rhomboides (Navicula) Ehrenberg : Rabenhorst 1406 : Dresden (Dresden) GDR rhomboides (Navicula) Ehrenberg : Rabenhorst 2201 : Lillhagsjan Umea [Lake]