Formal/Scientific:
* Palmate feet: This is the most accurate scientific term.
* Syndactylous feet: This refers to the fusion of digits, which is the defining characteristic of webbed feet.
Informal/Descriptive:
* Webbed toes: This emphasizes the individual digits.
* Paddles: This is a good descriptor for the function of webbed feet, especially in aquatic animals.
* Fins: While technically inaccurate, this can be used in a figurative sense, especially for creatures that swim well.
The best choice will depend on the specific situation and the desired level of formality.