Compare Encyonema hamsherae
Compare
Several Cymbella species are superficially similar to E. hamsherae (incluing C. affinis, C. affiniformis, C. excisa and C. exigua). Note that distal raphe ends are ventrally deflected in Encyonema and dorsally deflected in Cymbella. Furthermore, E. hamsherae lacks a stigma and has a straight, rather than a lateral raphe. In addition, the stria density is generally higher in E. hamsherae than in these Cymbella taxa.
LM scalebar = 10 µm
Length Range
19-30 µm
19-30 µm
Width Range
6.5-7.5 µm
6.5-7.5 µm
Striae in 10 µm
16-18 in middle of dorsal side, 15-18 in middle of ventral side
16-18 in middle of dorsal side, 15-18 in middle of ventral side
Cymbella affinis
Length Range
19-36 µm
19-36 µm
Width Range
6.9-9.0 µm
6.9-9.0 µm
Striae in 10 µm
9-12 in the center valve, 13-14 at the ends
9-12 in the center valve, 13-14 at the ends