Photos about rovers (Emmelichthyidae), including rover larvae and juveniles: Cultured rover (Emmelichthyidae) larva; 39 dph - 32 mm. Hawaii.Pelagic juvenile Hawaii rover (Emmelichthyid) species reared in the laboratory.Pelagic juvenile Karnella's rover (Emmelichthys karnellai) reared in the laboratory.