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Observations
| Observations: | Sarah Spaulding and Rhea Esposito |
|---|---|
| Length: | 19-27 µm |
| Width: | 5-7 µm |
| Striae: | 18-20 in 10 µm |
Description:
Valve elliptical-lanceolate with ends rostrate to rostral capitate. Central area elliptical to rectangular. Axial area small or indistinct. Raphe simple, straight and very thin, narrowing at the distal ends. Striae radiate at the center; slightly convergent at the distal ends.
| Morphology: | Naviculoid |
|---|---|
| Distribution: | South Victorialand endemic |
Autecology:
Notes:
This diatom appears to be closely related to Navicula cryptocephla, but the valve is more rounded with elongate endings. The valve shape and striae pattern resembles that of Navicula hofmanniae, but the specimens encountered in this study were smaller and with denser striae. The diatom also resembles Navicula gregaria, but the striae are less punctate. Thus, this appears to be a new species of Navicula.
McMurdo Dry Valleys Waterbodies with Navicula gregaria
- Aiken Creek
- Bowles Creek
- Canada Stream
- Commonwealth Glacier
- Commonwealth Stream
- Green Creek
- Harnish Creek Tributary
- Huey Creek
- Lake Fryxell
- Lost Seal Stream
- McKay Creek
- Miers Stream
- Onyx River
- Von Guerard Stream
Original Type Description
| Author: | Donkin 1861 |
|---|---|
| Length: | |
| Width: | |
| Striae: |
Original Description:
New combination
| Author: |
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Citations
Index Nominum Algarum (INA):
- Original
- If an INA link is available, it will be shown above
- The INA is a bibliographic reference "card file" for algal taxonomy, containing nearly 200,000 names of algae (in the broad sense).
Publications (by year):
- Donkin 1861. Quart. J. Micr. Sc., ser. 2, 1:10, pl. I, fig. 9. [citation 32(10)]
- Krammer and Lange-Bertalot 1986. p. 116-117, taf. 38, figs 10-15. [citation 74(52)]
- Lange-Bertalot 1993. p. 116-17, taf. 48, figs 12-18. [citation 82(69)]
