Fleshy, downward protuberances from the upper lip of some male salamanders of the family Plethodontidae, such as Eurycea cirrigera. The cirri are thought to help the males detect chemical excretions from females and competing males during the breeding season.

whisker-like appendages that project downward from the nostrils of some male plethodontid salamanders.

A tendril-like animal appendage; the jointed thoracic appendages of barnacles.

Downward projections from nostrils in plethodontid males; naso-labial grooves extend almost to the tips

A tendril or similar part; a slender flexible appendage.

Small, flexible appendages present on some invertebrates, including barnacles and annelids.