Lobsters
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Some arthropods can produce pulsed sounds. They create these sounds by rubbing hard pick over stiff macroscopic ridges. Spiny lobsters also make pulsed sounds. Patek shows this by virtue of a frictional 'stick-and slip' mechanism.
Palinurid lobsters make a loud abrasive sound. They do so by rubbing a plectrum over a file. The rasp is very similar to sounds made by crickets; but lobsters make sound pulses without impact between hard structures. Instead of using hard structures, soft tissue plectrum rubs over microscopic shingles in file.
The lobster plectrum and file is similar to the 'stick and slip' of the bow and string of stringed instruments. Within stringed instruments friction causes the bow to stick shortly, and then to slip along the string many times during one single sweep of the bow across the string...