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Guide to Envekadea metzeltinii

Sylvia S.Lee, Tobias, and Van de Vijver 2013

Envekadea Metzeltinii Guide
Credit: Bart Van de Vijver, Sylvia Lee
  1. Distal raphe ends deflected to opposite sides
  2. Longitudinal ribs present
  3. Striae radiate, except at apices

Valves are linear, with nearly parallel margins. Internal, longitudinal ribs are present. The raphe is straight, except at the apices where the distal raphe ends are hooked to opposite sides. The proximal raphe ends are small and straight. Striae are radiate and weakly bent, except at the apices, where the striae are divergent.