Conference photograph

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Abstract

Ink and food coloring were applied to the nasolabial grooves of the plethodontid salamander Ensatina. Such liquids, when in contact with the grooves, are rapidly passed upward to the external nares. These fluids then pass into the nasal chambers, over the chemoreceptors of the Jacob-son's organs and down through the internal naris into the pharnyx. This evidence strongly supports the idea that the nasolabial grooves in lungless salamanders directly facilitate chemoreception. The chemoreceptive func-tion of the grooves is probably important in reproductive behavior. Ink and food coloring were applied to the nasolabial grooves of the plethodontid salamander Ensatina. Such liquids, when in contact with the grooves, are rapidly passed upward to the external nares. These fluids then pass into the nasal chambers, over the chemoreceptors of the Jacob-son's organs and down through the internal naris into the pharnyx. This evidence strongly supports the idea that the nasolabial grooves in lungless salamanders directly facilitate chemoreception. The chemoreceptive func-tion of the grooves is probably important in reproductive behavior. WHIPPLE (1906), and recently Brown and Martof (1966), have suggested

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Conference photograph. (2007). In Ultramicroscopy (Vol. 107, p. 8). Elsevier. https://doi.org/10.1016/S0921-4526(07)00242-6

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