A study of the visual pigments of the clawed toad.
D000818:Animals; D001001:Anura; D010860:Pigments, Biological; D011898:Ranidae; D012160:Retina; D012168:Retinal Pigments
D010860:Pigments, Biological; D012168:Retinal Pigments
FROGS AND TOADS; PIGMENTS; RETINA