Fig. 2From: Distant hybrids of Heliocidaris crassispina (♀) and Strongylocentrotus intermedius (♂): identification and mtDNA heteroplasmy analysisMorphological comparisons among living individuals. HC_F: Heliocidaris crassispina Fujian population; SI_C: Strongylocentrotus intermedius cultured population; HS hybrid: H. crassispina (♀) × S. intermedius (♂) hybridsBack to article page