Pinnularia major Rabh.




Collection 1552a

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Pinnularia major (Kutz.) Rabh., Sussw.- Diat., p.42, pl. 6, fig. 5, pl. 10 supp., fig. 4, 1853(Patrick and Reimer 1966).

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This species is a valve linear, swollen in the middle with rounded ends which are often slightly swollen. This taxon is distinguished by the shape of the valve, the axial and central areas, and the angle of the striae(Patrick and Reimer 1966).

  • Type Locality
    Germany, Halle(Patrick and Reimer 1966)

  • Synonyms(
    Frustulia major Kutz., Linnaea, 8:547, pl. 14, fig. 25. 1833(Patrick and Reimer 1966).
    Navicula major (Kutz.) Kutz., Bacill., p. 97, pl. 4, figs. 19-20. 1844(Patrick and Reimer 1966).

  • Ecology
    This taxon is widely distributed in water of fairly low mineral content and is considered pH indifferent. It can be found in a wide range of habitats(Patrick and Reimer 1966; Beaver 1981).

    Size ranges and morphology

  • Length is 140 to 200 micrometers (Patrick and Reimer 1966).
  • Width is 25 to 40 micrometers (Patrick and Reimer 1966).
  • Striae are 5 to 7 in 10 micrometers (Patrick and Reimer 1966).