| WebNameShort | |
| Anomoeoneis exilis var. azorica Manguin 1942 |
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| Anomoeoneis spectabilis Manguin 1942 |
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| Caloneis clevei f. inaequalis E. Manguin 1942 |
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| Cymbella cesatii f. minor E. Manguin 1942 |
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| Cymbella perpusilla var. azorica E. Manguin 1942 |
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| Eunotia pectinalis f. affines Manguin 1942 |
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| Fragilaria punctatostriata (punctato-striata) Manguin 1942 |
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| Frustulia rhomboides var. rostrata Manguin 1942 |
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| Gomphonema parvulum f. affine Manguin 1942 |
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| Gomphonema salinarum Pantocsek in Fricke apud A. Schimdt 1942 |
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| Melosira cataractarum f. laevis Manguin 1942 |
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| Navicula dispersa Manguin 1942 |
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| Navicula dispersa f. constricta Manguin 1942 |
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| Navicula dispersa f. rostrata Manguin 1942 |
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| Navicula infirma Manguin 1942 |
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| Navicula infirma Manguin 1942 |
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| Navicula mutica var. gomphonemoides Manguin 1942 |
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| Navicula radiosa f. intermedia Manguin 1942 |
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| Navicula simulata Manguin 1942 |
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| Navicula subminuscula Manguin 1942 |
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| Nitzschia amphibia f. abbreviata Manguin 1942 |
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| Nitzschia clausii f. curvirostrata Manguin 1942 |
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| Nitzschia monguilloni Manguin 1942 |
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| Nitzschia palea f. dubia Manguin 1942 |
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| Pinnularia allorgei Manguin 1942 |
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| Pinnularia appendiculata f. constricta Manguin 1942 |
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| Pinnularia borealis f. elongata Manguin 1942 |
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| Pinnularia brevicostata var. intermedia Manguin 1942 |
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| Pinnularia gibba f. minutissima Manguin 1942 |
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| Pinnularia microstauron f. minutissima Manguin 1942 |
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| Pinnularia streptoraphe f. minor Manguin 1942 |
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| Pinnularia subcapitata f. lata Manguin 1942 |
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| Pinnularia subsolaris f. mutabilis Manguin 1942 |
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| Surirella (Suriraya) delicatissima f. tenuissima Manguin 1942 |
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| Synedra allorgei Manguin 1942 |
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