Opercula and radula, F. klamathensis, sp. n. A, B Opercula (outer, inner sides), USNM 1468970 C Operculum (inner side), USNM 144348 D Portion of radular ribbon, USNM 1468970 E, F Central teeth, USNM 144346, USNM 1144348 G, H Lateral teeth, USNM 1144346, USNM 1144348. Scale bars: 500 µm (A–C); 20 µm (D–H).

  Part of: Liu H-P, Hershler R (2019) A new species and range extensions for three other species of pebblesnails (Lithoglyphidae, Fluminicola) from the upper Klamath basin, California–Oregon. ZooKeys 812: 47-67. https://doi.org/10.3897/zookeys.812.29205