Figure 7From: Mating behaviour in the sea slug Elysia timida (Opisthobranchia, Sacoglossa): hypodermic injection, sperm transfer and balanced reciprocity Range plot of the duration of sperm transfer into the female aperture per partner (represented by the minimum and maximum) for 25 pairs, ranked by the minimum value per pair. Dashes indicate pairs with identical values for both partners. There is a high degree of within-pair similarity in the duration of sperm transfer.Back to article page