| Catalogue of Diatom Names, On-Line Version, Updated 19 Sep 2011 |
| About the On-line Catalogue | Introduction & Acknowledgements | Search the On-line Catalogue | Instructions on Searching for Species | Instructions on Searching for Genera | Instructions on Searching for Publications | Citing the Catalogue of Diatom Names | Contact Us |
| Thumia P.T. Cleve ex F.B. Taylor pg. 228 | |
| Generitype | T: Thumia elegans P.T. Cleve ex P. Lefebure & E. Cheneviere 1938 |
| Designated by | Cleve ex Lefebure et Cheneviere (001339) |
| Year Designated | 1938 |
| Nomenclatural status | valid |
| Recent revisions | |
| Comments | Fossil. Type by monotypy. Taylor's entry reads: "Thumia Cleve in litt. M.f. 3a. I have a slide by Thum of a beautiful species of Aulacodiscus marked Thumia elegans Cl. from Pansram in Moravia. Thum wrote that Cleve has so named it. The center is flat, square or triangular, sloping down to the border. Radiating lines of fine, distinct beads run to the margin, with the usual intervals or furrows to the feet. A second slide by Thum, labelled Thumia oceanica Mer. is Actinocyclus Stictodiscus (D.T.4768. V.H.S. 188.4) = Stictocyclus Mann." Since the genus is considered monotypic by Taylor (he placed the species labelled Thumia oceanica by Cleve in genus Stictocyclus Mann), the generic name is validated by a single description "generico-specifica" (the description of Thumia elegans given by Taylor) (see. Art. 42.1). Farr et al. (1979) and current internet version of the ING give entry as "Thumia P.T. Cleve ex P. Lefébure & E. Chenevière 1938, pg. 11 (ref. 001339). T: Thumia elegans P.T. Cleve ex P. Lefébure & E. Chenevière 1938." We believe that the name had been previously validated by Taylor 1929. |
| Published in |
Taylor, F.B. 1929 (ref. 877) Notes on Diatoms. Guardian Press, Bournemouth, England. 269 pp., 5 pls. |