Compare Cocconeis placentula sensu lato
Compare
Cocconeis pediculus has saddle-shaped valves and lacks a hyaline ring interrupting the striae on the raphe valve.
Cocconeis fluviatilis has a lower stria density, especially on the raphe valve. In addition, the areolae of C. fluviatilis are variable in size: smallest near the axial area and larger near the valve margin.
Cocconeis coreana belongs to C. placentula species complex, included as C. placentula sensu lato in this database. We recommend that practitioners use Cocconeis placentula sensu lato for most ecological assessments.
LM scalebar = 10 µm
Length Range
9-68 µm
9-68 µm
Width Range
7-32 µm
7-32 µm
Striae in 10 µm
20-24 on raphe valve, 15-25 on rapheless valve
20-24 on raphe valve, 15-25 on rapheless valve
Cocconeis pediculus
Length Range
17.0-41.5 µm
17.0-41.5 µm
Width Range
14-23 µm
14-23 µm
Striae in 10 µm
16-22 in the raphe valve center, 16-21 in the rapheless valve center
16-22 in the raphe valve center, 16-21 in the rapheless valve center
Cocconeis coreana
Length Range
21-58 µm
21-58 µm
Width Range
11.5-36.6 µm
11.5-36.6 µm
Striae in 10 µm
18-24 raphe valve, 18-24 rapheless valve
18-24 raphe valve, 18-24 rapheless valve
Cocconeis czarneckii
Length Range
17.7-51 µm
17.7-51 µm
Width Range
11.3-37.9 µm
11.3-37.9 µm
Striae in 10 µm
Raphe valve 18-30, rapheless valve 20-26
Raphe valve 18-30, rapheless valve 20-26