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- This article is about eyes mounted on stalks. For the instinctive tendency to track prey, see eye-stalking
In anatomy, an eyestalk (sometimes spelled as eye stalk or known as an ommatophore) is a protrusion that extends the eye away from the body, giving the eye a better field of view than if it were unextended. It is common in nature and in fiction.
In nature, eyestalks are sometimes called tentacles, and may have olfactory organs and/or eyes at the end. Examples include snails, the trilobite superfamily Asaphida, and fly family Diopsidae. The crustacean family Polychelidae have eyestalks but no eye.
Many Dalek variants have a horizontal eyestalk.
- "Design & Development: Monster Makeover: The Beholder". Retrieved June 29, 2012.