Two marine species of Cocconeis Ehrenberg (Bacillariophyceae): C. pseudomarginata Gregory and C. caribensis sp. nov.
1999; De Gruyter; Volume: 42; Issue: 6 Linguagem: Inglês
10.1515/bot.1999.065
ISSN1437-4323
AutoresOscar Romero, J. Nelson Navarro,
Tópico(s)Analytical Chemistry and Sensors
ResumoUsing light and electron microscopy, the frustular morphology of two structurally related marine Cocconeis species, C. pseudomarginata Gregory and C. caribensis sp. nov., is described. Cocconeis pseudomarginata has very dissimilar valves: the sternum-valve bears an externally depressed sternum, a longitudinal thickening, external elongated and internal circular areola openings; the raphe-sternum valve is concave between the apical axis and the valve margin. The type material of C. pseudomarginata and C. vitrea has been studied for comparison.
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