• Category
  • Class
    Bacillariophyceae
  • Order
    Eunotiales
  • Family
    Eunotiaceae
  • Type Species
    Semiorbis hemicyclus (Ehrenb.) Patrick in Patrick and Reimer

Displaying 4 of 4 species

Sorted from smallest to largest by maximum length
Semiorbis hemicyclus Length: 11-28 Width: 2-4 Striae: 11-14
Semiorbis catillifera Length: 17-40 Width: 4-5 Striae: 12-13
Semiorbis eliasiae Length: 16-40 Width: 3-5 Striae: 8-12
Semiorbis rotundus Length: 32-45 Width: 3-4 Striae: 12-13

Cite This Page

Edlund, M., Burge, D. (2015). Semiorbis. In Diatoms of North America. Retrieved May 01, 2026, from https://diatoms.org/genera/semiorbis?x-craft-preview=cab8b13ef68d1e257235fd2491770f51dfe0c9a6c0ad3b95411776e5316d603alxhbyabypv