preoral sting

preoral sting
(Subclass Branchiura):
On underside of cephalothorax, unpaired projection anterior to proboscis. Distal half of anteriorly directed preoral sting can be retracted into basal socket. Needlelike tip nears opening of poison gland. Used to puncture host. (Syn. preoral spine) [Stachowitsch, 1992].
(Subclass Branchiura):
Retractile piercing mechanism with poison gland [McLaughlin, 1980].

Crustacea glossary. . 2011.

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  • poison gland — (Subclass Branchiura): Gland located at base of preoral sting; opens at tip of sting via duct [Stachowitsch, 1992] …   Crustacea glossary

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  • proboscis — (Subclass Branchiura): On underside of cephalothorax, unpaired median projection posterior to preoral sting. Retractile, enclosing mouth and surrounding labrum, mandibles, and paragnaths. Supported distally by series of chitinous bars. Used to… …   Crustacea glossary

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