Stenostomum grabbskogense Luther, 1960

(Fig. 5 E, 7 D)

Localities. Loc. 4, 5, 6, 26, 29.

Known distribution. Finland (Luther 1960).

Material. Several individuals studied alive.

Description and remarks. Our findings correspond well to the description given by Luther (1960). However, the small and round brain appendix (“Hirnanhang” in Luther 1960) could not be seen in the Swedish specimens.