title: Acoustic nuclei in the medulla and midbrain of the vocalizing Gulf toadfish (Opsanus beta).
abstract: The organization of the descending and secondary octaval nuclei in the hindbrain of the Gulf toadfish, Opsanus beta, was revealed following the injection of biotin compounds into a physiologically identified auditory region of the torus semicircularis. The results show retrogradely-filled neurons mainly in a dorsomedial division of the descending octaval nucleus, and dorsal and ventral divisions of a secondary octaval nucleus; minor labeling also appeared in dorsolateral and rostromedial intermediate divisions of the descending nucleus. The pattern identified is consistent with that reported in other teleosts, including both vocal and non-vocal species, and clarifies earlier reports of the organization of hindbrain octaval nuclei in toadfish and the closely related midshipman fish.
authors: Department of Neurobiology and Behavior, Cornell University, Ithaca, NY, USA. ahb3@cornell.edu
authors: A H
authors: AH
authors: Bass
authors: D A
authors: DA
authors: Bodnar
authors: M A
authors: MA
authors: Marchaterre
mesh_terms: D000818:Animals; D001710:Biotin / Q000493:pharmacokinetics; D003056:Cochlear Nerve / Q000378:metabolism / Q000502:physiology*; D005260:Female; D005399:Fishes / Q000502:physiology*; D008297:Male; D008526:Medulla Oblongata / Q000378:metabolism / Q000502:physiology*; D008636:Mesencephalon / Q000378:metabolism / Q000502:physiology*; D009412:Nerve Fibers / Q000378:metabolism; D014828:Vocalization, Animal / Q000502:physiology*
chemical_list: D001710:Biotin