. Relationships among notothenioid fish as indicated from analysis of partial
sequences of mitochondrial12S and 16s ribosomal RNA genes from 18 species
in five families. Two species of zoarcid were used to provide outgroup data for the
erection of putative phylogenetic trees by maximum parsimony techniques. The
bars indicate species currently classified within the families Channichthyidae (ice
Bathydraconidae) may be paraphyletic. Redrawn from Ref. 28.