Using midshipman-specific primers, a predicted 150-bp product containing AR transcripts was identified by RT-PCR in a forebrain region (F), a middle CNS region including midbrain and caudal diencephalon (M), the cerebellum (C), hindbrain and rostral spinal cord (H), vocal muscle (VM), and saccular epithelium of the inner ear (E) of individual adult midshipman. Shown is a representative type I male.