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Guide to Tryblionella granulata

(Grunow) D.G.Mann in Round, R.M.Crawford and D.G.Mann 1990

Tryblionella granulata guide1
  1. Valves elliptic to elliptic-lanceolate
  2. Apices rounded to slightly cuneate
  3. Fibulae equally spaced
  4. Striae coarse

Valves are elliptic to elliptic-lanceolate. Apices are rounded to slightly cuneate. Fibulae are equally spaced. Striae are very coarse.