Morphological variabilty in Parafavella found samples from different stations in the Barents Sea was studied by Schulz & Wulff - Wulff drew pictures of each encountered at the different stations from the Russian coast at 69°N to about 77°N along a transect at 34°E. The image is negative version of Plate 13 from Schulz, B., Wulff, A. 1929. Hydrographie und Oberflacenplankton des Estlichen Barentsmeeres im Sommer 1927. Ber. Dtsch. Wiss. Meeresforsch. 4:1-144.