non-annulate seta, robust
These are often both mechano- and chemoreceptive; they usually occur in places where mechanical stress is high, such as along adjoining surfaces of chelae or on biting edges of amphipod and isopod mouthparts [Watling, 1989].

Crustacea glossary. . 2011.

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  • non-annulate seta, small, non-robust — This may be a heterogenous assemblage with several basic homologies represented and consequently will need re evaluation; they are usually very small sensory setae found at numerous sites on the body surface [Watling, 1989] …   Crustacea glossary

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