eyestalk

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eye·stalk

 (ī′stôk′)
n.
A movable structure in certain crustaceans, such as crabs and shrimp, that bears an eye at the tip.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

eyestalk

(ˈaɪˌstɔːk)
n
(Zoology) a movable stalk bearing a compound eye at its tip: occurs in crustaceans and some molluscs
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

eye•stalk

(ˈaɪˌstɔk)

n.
a stalk or peduncle upon which an eye is borne, as in a lobster or shrimp.
[1850–55]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

eye·stalk

(ī′stôk′)
A movable stalk having a compound eye on its tip, found on crabs, lobsters, and other crustaceans.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
The buccal mass, consisting of two eyestalks and the mouth, is on the body just proximal to the foot (Fig.
(2011) cloned full-length cDNA from molt-inhibiting hormone of eyestalks and discussed the expression of MIH mature peptide gene recombination in E.
During much of the molting cycle, the levels of ecdysteroids in hemolymph are kept low by the action of a peptide molt-inhibiting hormone (MIH), produced in the eyestalks. While the removal of MIH suppression during pre-molt coincides with increased ecdysteroidogenesis, there is evidence that an additional positive stimulus in the form of an intracellular Ca2+ signal also plays a significant role.
(2007) reported that in Penaeus duorarum (Burkenroad), silver accumulation occurs mainly in the hepatopancreas followed by hemolymph, however, in gill, muscle and eyestalks there was very little silver accumulation.
The eyestalks of crustaceans contain the optic lobes and the x-organ/sinus gland, a neuropeptide-secreting neurohemal structure that is analogous to the vertebrate hypothalamuspituitary system.
Eyestalks are the endocrine center for regulating many physiological mechanisms such as molting, metabolism, sugar balance, heart rate, pigments and gonad maturation.
In a study in China, other tagging methods (e.g., hanging tag brands, unilaterally extirpating eyestalks, and cutting uropods) were used and resulted in estimated recapture rates for juvenile fleshy prawns (Fenneropenaeus chinensis) from 0.001% to 1.510%.
Broad he completed his dissertation on "The Development and Function of Neurosecretory Sites in the Eyestalks of Larval Palaemonetes (Decapoda: Natantia)" published in part (Biol.
It has been traditionally accepted that ablation of the eyestalks leads to enhanced ecdysteroid secretion and elevates molting (Keller and Schmid; 1979; Chang and Bruce, 1980).
Distinguishing features: Has horned eyestalks and a green-coloured carapace.
Their individual personalities are ultimately defined by the way their mouths move, the voice actors and the distinctive behavior of their two googly eyestalks.