S. japonica mating in the head-to-head position.

 
 
  Part of: Liu L, Zhang Y, Hu X, Lü Z, Liu B, Jiang LH, Gong L (2019) Multiple paternity assessed in the cuttlefish Sepiella japonica (Mollusca, Cephalopoda) using microsatellite markers. ZooKeys 880: 33-42. https://doi.org/10.3897/zookeys.880.33569