On Vision in Pontoporeia affinis and P.femorata <Crustacea,Amphipoda>.

Geahča maid

• On Summer-Breeding in populations of Pontoporeia affinis (Crustacea Amphipoda) living in lakes of North America.
  Dahkki: Segerstråle, Sven Gustav
  Almmustuhtton: (1971)
• The Distribution and morphology of Pontoporeia affinis Lindström f.brevicornis (Crustacea Amphipoda) inhabiting North American lakes, with a description of a new aberrant male form from the area.
  Dahkki: Segerstråle, Sven Gustav
  Almmustuhtton: (1971)
• Zur Fortpflanzungsbiologie des Amphipoden Pontoporeia femorata Kröyer
  Dahkki: Segerstråle, Sven G.
  Almmustuhtton: (1938)
• The taxonomic Status and prehistory of the glacial relict Pontoporeia <Crustacea Amphipoda> living in North American lakes.
  Dahkki: Segerstråle, Sven Gustav
  Almmustuhtton: (1977)
• Synopsis of Data on the Crustaceans Gammarus locusta, Gammarus oceanicus, Pontoporeia affinis, and Corophium volutator Amphipoda Gammaridea
  Dahkki: Segerstråle, Sven G.
  Almmustuhtton: (1959)