Fig. 6
From: Paedomorphosis in the Ezo salamander (Hynobius retardatus) rediscovered after almost 90 years

Fertilization rates of paedomorph-like (PM-2 and PM-3) and metamorphosed males (TM-1 and TM-2) obtained by the artificial fertilization experiment. Control indicates unfertilized treatments. Symbols of the same color and shape indicate eggs from the same female parent