An effect of eyestalk ablation on antennular function in the spiny lobster, Panulirus argus

1. Unilateral removal of the eyestalk (optic ganglia and medulla terminalis) in the Bermuda spiny lobster, Panulirus argus , disrupts normal initiation of feeding activity via chemo-tactile stimulation of the antennule on the side of the ablation. This deficit may be permanent for it has lasted without apparent remission for over five months and two molts. Unilateral eyestalk ablation also produces a temporary increase in antennular cleaning activity directed toward the antennule on the side of the ablation. This effect seems to last for less than 16 days. Unilateral eyestalk ablation does not appreciably disturb spontaneous antennular movements or responses to mechanical stimulation of the antennule on either side. Nor does it destroy the ability of the lobster to give differential responses to mechanical and chemo-tactile stimuli. Most lobsters recover normal sensory and motor functions in antennules that regenerate after amputation of the distal segment and sensory flagellae. In about 1/3 of the animals, however, some form of sensory or motor abnormality is evident in the regenerated antennule. These deficits are ascribed to occasional failure of regenerating neurons to reform appropriate central connections. They do not resemble the deficits following eyestalk ablation. The medulla terminalis is tentatively proposed as the portion of the nervous system critical for normal antennular function that is removed by eyestalk ablation. There seem to be similarities between the effects of eyestalk ablation in the Crustacea as described here and the effects following destruction of portions of the corpora pedunculata in insects. 1. Einseitige Entfernung des Augenstieles (optische Ganglien und Medulla terminalis) bei der Bermuda-Stachellanguste, Panulirus argus , unterbricht auf der operierten Seite den Beginn der normalen Freß-tätigkeit, die durch chemische und taktile Reizung der Antennula eingeleitet wird. Diese Störung kann irreversibel sein, denn sie überdauerte in über 5 Monaten zwei Häutungen.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/47096/1/359_2004_Article_BF00340474.pd

On a new type of elastic tissue observed in the larva of Eristalis

Volume: 14Start Page: 151End Page: 15

Comparative researches upon the organization of the brain in the principal groups of arthropods

Volume: 11Start Page: 62End Page: 6

Observations on the salivary glands of the Echidnas

Volume: 5Start Page: 83End Page: 8

On the Postembryonic development of the Diptera

Volume: 9Start Page: 61End Page: 6

On the histolysis of the muscles of the larva during the postembryonic development of the diptera

Volume: 7Start Page: 352End Page: 35

1. Laboratoire de zoologie anatomique et physiologique au Muséum d'histoire naturelle

Milne-Edwards Alphonse, Milne-Edwards Alphonse, Filhol H., Viallanes Henri. 1. Laboratoire de zoologie anatomique et physiologique au Muséum d'histoire naturelle. In: Rapport sur l'École pratique des hautes études, 1884-1885. 1884. pp. 55-63

1. Laboratoire de zoologie anatomique et physiologique au Muséum d'histoire naturelle

Milne-Edwards Alphonse, Milne-Edwards Alphonse, Filhol H., Viallanes Henri. 1. Laboratoire de zoologie anatomique et physiologique au Muséum d'histoire naturelle. In: Rapport sur l'École pratique des hautes études, 1884-1885. 1884. pp. 55-63