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| Eunotia stehlei Manguin in Bourrelly & Manguin 1952 |
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| Eunotia thienemannii (thienemani) f. triundulata Manguin in Bourrelly & Manguin 1952 |
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| Eunotia ungulata Manguin in Bourrelly & Manguin 1952 |
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| Eunotia xystriformis Manguin in Bourrelly & Manguin 1952 |
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| Frustulia rhomboides var. elongatissima Manguin in Bourrelly & Manguin 1952 |
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| Gomphonema angustatum var. naviculoides Manguin in Bourrelly & Manguin 1952 |
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| Gomphonema brasiliense var. acuta Manguin in Bourrelly & Manguin 1952 |
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| Gomphonema intricatum f. attenuata Manguin in Bourrelly & Manguin 1952 |
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| Gomphonema puiggarianum f. reducta Manguin in Bourrelly & Manguin 1952 |
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| Gomphonema spicula Manguin in Bourrelly & Manguin 1952 |
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| Melosira granulata f. epiphytica Manguin in Bourrelly & Manguin 1952 |
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| Melosira granulata f. intermedia Manguin in Bourrelly & Manguin 1952 |
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| Melosira granulata var. tubulosa Manguin in Bourrelly & Manguin 1952 |
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| Navicula abdita Manguin in Bourrelly & Manguin 1952 |
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| Navicula abducta Manguin in Bourrelly & Manguin 1952 |
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| Navicula allorgei Manguin in Bourrelly & Manguin 1952 |
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| Navicula arvensis f. major Manguin in Bourrelly & Manguin 1952 |
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| Navicula brasiliana var. guadalupensis Manguin in Bourrelly & Manguin 1952 |
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| Navicula brevissima var. elongata Manguin in Bourrelly & Manguin 1952 |
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| Navicula contenta f. inflata Manguin in Bourrelly & Manguin 1952 |
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