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Receptor organs in the coxal region of Palinurus vulgaris

Published online by Cambridge University Press:  11 May 2009

J. S. Alexandrowicz
J. S. Alexandrowicz
Affiliation:
The Plymouth Laboratory
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Extract

In the coxal region of Palinurus vulgaris Latr. the following proprioceptors are present: (1) a thoracico-coxal muscular receptor, (2) two innervated elastic strands (depressor and levator receptors), and (3) a coxo-basipodite receptor. Thus, Palinurus has the same number of these organs as some Brachyura and Anomura, but differs from Homarus and Astacus, which have five of them.

In all the five thoracic segments carrying the legs the receptor organs in Palinurus originate on special receptor rods which are thin projections of the endophragmal skeleton.

The muscle elements of the muscular receptor are surrounded by connective tissue which in the proximal part of the muscle forms a thick sheath. To the receptor rod the muscle is attached by a short tendon. The motor fibres reach the receptor muscle at about the midpoint of its course.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 47 , Issue 2 , June 1967 , pp. 415 - 432
Copyright
Copyright © Marine Biological Association of the United Kingdom 1967

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References

REFERENCES

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