The presence and localization of α‐ and β‐spectrins and of the spectrin cross‐linking protein actin were investigated, in previtellogenic oocytes of three species of Antarctic teleosts: the two red‐blooded nototheniids, Trematomus bernacchii and Trematomus newnesi , and the channichthyid, the ice fish Chionodraco hamatus . Analyses by western blotting indicated that these species had an unusual abundance of spectrin isoforms a...