Partridge J C, Speare P, Shand J, Muntz W R, Williams D M
Department of Zoology, University of Bristol, U.K.
Vis Neurosci. 1992 Aug;9(2):137-42. doi: 10.1017/s0952523800009597.
Visual pigments from the red rods of adults of eight species of Australian anuran amphibians, from a variety of habitats, were analyzed by microspectrophotometry. The lambda max in all cases fell between 502 nm and 506 nm, and the absorption spectra were well fitted by an A1-based visual pigment template curve. Red rod pigments were also analyzed for a number of tadpoles. In some cases the data were best fitted with an A1-based visual pigment template, in other cases with an A2-based template, and finally some tadpoles appeared to have mixtures of the two pigments.
