Sellaphora hustedtii has smaller valves and fewer striae around the central area. S. santiagoi is extremely similar to S. subfasciata; further investigation may show the two taxa to be conspecific. The only difference between two species is the areola density: 56-64 in 10 µm in S. subfasciata and 70 in 10 µm in S. santiagoi.

LM scalebar = 10 µm
Gc44259  Nasubfasciata  Holo A Gc44259  Nasubfasciata Not Type1A Gc44264A  Falatelolong 3 Gc44264A  Sesubfasciata 3Zeiiss Gc44264A  Sesubfasciata 1
Length Range
14-18 µm
Width Range
3.6-4.5 µm
Striae in 10 µm
26-28 in the center valve, 30-32 at the ends

Also compare to

Sellaphora hustedtii

(Krasske) Lange-Bert. and Werum in Werum and Lange-Bert.

Sellaphora santiagoi

Metzeltin et al.