Sulphurbellied

Sulphurbellied refers to a characteristic coloration found in certain animal species, most notably certain species of frogs and birds. This description specifically denotes the presence of a yellowish or sulfur-colored belly or underside. The term is often used in scientific descriptions and field guides to aid in species identification and differentiation.

In herpetology, the term "sulphurbellied" is commonly associated with several species of frogs. For instance, the Sulphur-bellied Frog (Rana sylvatica) is a well-known example, though the exact extent and intensity of the yellow coloration can vary. This coloration can be a key distinguishing feature when compared to other similar species that may have white or differently colored undersides.

Similarly, in ornithology, the term can be applied to birds. While not a formal taxonomic classification, it serves as a descriptive adjective. A bird described as "sulphurbellied" would have a pronounced yellow patch on its ventral side. This trait can be important for identifying specific subspecies or populations within a larger species, or for distinguishing between closely related species. The exact shade and pattern of the sulphur-colored belly can vary, and it may be more prominent in certain age groups or sexes.