Wittrock & Nordstedt, Algae Aquae Dulcis Exs.
Wittrock, V.B.; Nordstedt, C.F.O. [1 - 1200]

Field Museum of Natural History
Catalog #: C0530679F
F. R. Kjellman #s.n. 00 August 1876
Spongomorpha arcta (Dillwyn) Kützing
Norway, Finnmark, arctoæ in Finmarkia occidentali

Miami University - Algae
Catalog #: 000197809
F. R. Kjellman #s.n. 00 August 1876
Spongomorpha arcta (Dillwyn) Kützing
Norway, Finnmark, Norvegiæ arctoæ in Finmarkia occidentali