In anatomy, an eyestalk (sometimes spelled eye stalk and also known as an ommatophore) is a protrusion that extends an eye away from the body, giving the eye a better field of view.[Allayie SA, Ravichandran S, Bhat BA. Hormonal regulatory role of eyestalk factors on growth of heart in mud crab, Scylla serrata. Saudi J Biol Sci. 2011;18(3):283-286. doi:10.1016/j.sjbs.2011.02.003]
In nature
Eyestalks are a specialized type of
tentacle. Tentacles may also have
olfactory organs at their ends.
Examples of creatures with olfactory tentacles include
, the
trilobite superfamily
Asaphida, and the fly family
Diopsidae. In
and snails, these tentacles will regrow if severely damaged, and in some species, are retractable.
also have eyestalks, consisting of two segments.
== Gallery ==
.]]
'' on eyestalk. There is also a small
tentacle on the eyestalk.]]
See also
-
Eyestalk ablation
-
The cephalofoils of Hammerhead sharks
