The glutamate transporter, EAAC1, was localized immunocytochemically in goldfish, salamander, turtle, chicken, and rat retinas, using affinity-purified oligopeptide antibodies. Immunoreactive (IR) EAAC1 was present in the inner plexiform layer of all species, and in cell bodies of bipolar, amacrine, and ganglion cells of most species, but absent from photoreceptors and Müller's glial cells. Western blots revealed an IR-EAAC1 band at 70 kDa. Staining was abolished by preabsorption with EAAC1 peptide.