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| Coscinodiscus lacustris var. australiensis (Grunow) Rattray 1890 |
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| Coscinodiscus lacustris var. hyperborea (Grunow) Rattray 1890 |
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| Coscinodiscus lacustris var. septentrionalis (Grunow) Rattray 1890 |
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| Coscinodiscus marginatus var. intermedia (intermedius) (Grunow) Rattray 1890 |
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| Coscinodiscus moelleri var. macroporus (Grunow) Rattray 1890 |
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| Coscinodiscus monicae (Grunow) Rattray 1890 |
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| Coscinodiscus pacificus (Grunow) Rattray 1890 |
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| Coscinodiscus spinuligerus (Grunow) Rattray 1890 |
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| Coscinodiscus sublineatus (Grunow) Rattray 1890 |
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| Coscinodiscus superbus var. moravica (Grunow) Rattray 1890 |
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| Coscinodiscus baileyi (H.L. Smith) Rattray 1890 |
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| Coscinodiscus proteus (Hardman manuscript, Van Heurck) Rattray 1890 |
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| Stelladiscus stella (Norman) Rattray 1890 |
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| Coscinodiscus concinnus var. moseleyi (O'Meara) Rattray 1890 |
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| Coscinodiscus grunowii var. minor (Pantocsek) Rattray 1890 |
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| Coscinodiscus hungaricus var. szaboi (Pantocsek) Rattray 1890 |
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| Coscinodiscus rothii var. actinocycloides (Pantocsek) Rattray 1890 |
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| Coscinodiscus gigas var. diorama (Schmidt in Schmidt et al.) Rattray 1890 |
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| Coscinodiscus radiatus var. minor (Schmidt) Rattray 1890 |
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| Coscinodiscus naviculoides (Truan y Luard & Witt) Rattray 1890 |
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