Navicula Cari Guide
Credit: Loren Bahls
  1. Central area rounded to rectangular
  2. Striae evenly spaced throughout
  3. Striae curved and strongly radiate near valve center

Navicula cari has lanceolate to linear-lanceolate valves with a distinct, rounded to rectangular central area. Striae are evenly spaced throughout and both curved and strongly radiate near the valve center.