Compare

Sellaphora californica and S. hohnii have wider valves, grooves and conopea than S. rexii. Sellaphora mutatoides has more narrow apices. Sellaphora meridionalis lacks grooves and conopea.

LM scalebar = 10 µm
Gs003341  Rexii S12 Holo2B Real Gsn95461 S8 Gs003341  Rexii Holo3B Gs003341  Rexii  S7C Gs003341  Rexii  S5B
Length Range
22-33 µm
Width Range
7.1-8.6 µm
Striae in 10 µm
20-24

Sellaphora californica

Potapova in Potapova and Charles 2004

Sellaphora californica LM1 Sellaphora californica LM3 Sellaphora californica LM2 Sellaphora californica LM5 Sellaphora californica LM4
Length Range
23-40 µm
Width Range
8-10 µm
Striae in 10 µm
20-22 in the center valve, 26-28 at the ends

Sellaphora hohnii

Potapova and Ponader 2008

Gc44484 9 Sellaphora hohnii LM1 Gc44484 1 Ss1 Gc44484 8 Ss8 Gc44484 2 Ss2
Length Range
28-47 µm
Width Range
8.9-9.8 µm
Striae in 10 µm
20-23

Sellaphora meridionalis

Potapova and Ponader 2008

Sellaphora meridionalis LM4 Sellaphora meridionalis LM3 Sellaphora meridionalis LM5 Sellaphora meridionalis LM7 Sellaphora meridionalis LM6 Sellaphora meridionalis LM1 Sellaphora meridionalis LM2
Length Range
18-32 µm
Width Range
6.8–7.8 µm
Striae in 10 µm
22–23

Also compare to

Sellaphora mutatoides

Lange-Bert. and Metzeltin