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Guide to Aneumastus rostratus

(Hust.) Lange-Bert. 2001

Aneumastus Rostratus Guide
Credit: Loren Bahls
  1. Striae 11-12 in 10 µm
  2. Apices rostrate
  3. Areolae irregularly spaced

Valves are lanceolate to elliptic-lanceolate with rostrate apices. Striae are 11-12 in 10 µm and composed of irregularly spaced areolae. The raphe is weakly lateral.