Navicula cryptocephala Kützing (1844: 95)

Amaral, Mailor Wellinton Wedig, Medeiros, Gabriela, Daufenbach, Vanessa, Sampaio, Silvio Cesar, Reis, Ralpho Rinaldo Dos, Ludwig, Thelma Alvim Veiga & Bueno, Norma Catarina, 2024, Taxonomy of epilithic diatoms and teratological forms under the presence of metals in surface sediment, Phytotaxa 647 (3), pp. 237-273 : 255

publication ID	https://doi.org/10.11646/phytotaxa.647.3.3
DOI	https://doi.org/10.5281/zenodo.14743497
persistent identifier	https://treatment.plazi.org/id/C92C87AE-FFEF-FFEA-FF2B-FDD8C35BFC19
treatment provided by	Felipe (2024-08-02 12:46:12, last updated 2025-01-26 20:25:14)
scientific name	Navicula cryptocephala Kützing (1844: 95)
status

Treatment

Navicula cryptocephala Kützing (1844: 95) View in CoL

Figs 10 View FIGURE 10 : G–I

Length: 19.9–26.1 µm; width: 4.7–6.9 µm; f striae: 16–18 in 10 μm (n = 3)

Teratological form: deformed valve outline, with loss of transapical symmetry.

Occurrence: S2.

Ecological characteristics: Cond.: 52.00 µS cm –1; BOD: 4.16 mg L− 1; COD: 17.43 mg L− 1; N-NH: 316 µg L− 1; NO: 0.32 mgL−1; DO: 3 3 − 1 − − 1 − 1 − 1 3 14.62 mg L; pH: 6.04; PO: 0.004 mg L; TP: 0.012 mg L; TS: 16.00 mg L; Temp.: 17.90 °C; Turb.: 9.25; Flow: 0.45 m s; 4 Average depth: 0.19 m; Prec.: 9.96 mm.

Metal concentrations: Co: 19.28–23.11 mg L –1; Cr: 25.92–83.62 mg L –1; Cu: 196.71–241.52 mg L- 1; Mn: 400.50–955.89 mg L –1; Ni: 33.21–59.59 mg L –1; Pb: 36.28–38.28 mg L –1; Zn: 78.35–169.95 mg L –1.

References

Kutzing, F. T. (1844) Die Kieselschaligen. Bacillarien oder Diatomeen. Nordhausen, 152 pp. https: // doi. org / 10.5962 / bhl. title. 64360

Figures

FIGURE 10. Epilithic diatoms from Cascavel River micro-watershed in LM. A. Capartogramma crucicula. B. Gyrosigma acuminatum. C. G. obtusatum. D–E. Navicula eichhorniaephila. F–I. N. cryptocephala. G–I. Teratological valves. J. N. angusta. K. N. leptostriata. L–M. N. cryptotenella. M. Teratological valve. N. N. radiosa. O–P. N. tenelloides. Q. N. symmetrica. R. N. schwabei. S. N. rostellata. T–U. N. salinicola. V–W. Craticula submolesta. W. Teratological valve. X. C. ambigua. Y–Z. C. riparia. Z. Teratological valve. AA–AB. Stauroneis smithii. AC. S. gracilis. AD. S. neohyalina. AE. S. phoenicenteron. AF–AG. Chammaepinnularia brasilianopsis. AH. Pseudofallacia monoculata. AI–AJ. Kobayasiella parasubtilissima. AK. Halamphora montana. AL. H. normanii. AM. Amphora copulata. Scale bars: 10 µm.