| Catalogue of Diatom Names, On-Line Version, Updated 19 Sep 2011 |
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| Biddulphia formosa var. pentagonalis (A. Schmidt in Schmidt et al.) Witt in Walker & Chase 1886, p. 2; pl. 2, fig. 9 | |||
| Basionym | Triceratium formosum var. pentagonalis (pentagonale) Schmidt in Schmidt et al. 1882 | ||
| Status | Valid | ||
| Published in | Walker, W.C. and Chase, H.H. 1886 [ref. 000904]. Notes on some new and rare Diatoms. Photoplates. Series I. Curtiss & Childs Print, Utica, New York. pp. 1-6, 2 pl. | ||
| Type | INA card not found. Click here to check this name in the INA website. | ||
| Type Locality | Language of description | E | |
| Collector | Assessment of record accuracy | likely accurate | |
| List of nomenclatural synonyms | Triceratium formosum var. pentagonalis (pentagonale) Schmidt in Schmidt et al. 1882 Trigonium formosum var. pentagonalis (A. Schmidt) Desikachary & Prema 1987 | ||