| 1. | Jackknife chelicera presents two different forms : orthognathous and labidognathous.
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| 2. | This kind of chelicera is rotated and occurs exclusively in the Araneomorphae spiders.
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| 3. | Unlike females, the males bear a pair of flagella, one on each chelicera.
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| 4. | Unlike other rastellum on the chelicera.
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| 5. | The cheliceras ( fangs ) bared.
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| 6. | Just before entering the chelicera, the duct enlarges to a muscle-invested ampulla and then constricts again.
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| 7. | In the accompanying photograph of a male solifugid, one flagellum is just visible near the tip of each chelicera.
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| 8. | The glands are connected to a small duct through which the venom is discharged via its fang-like chelicera.
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| 9. | This kind of chelicera occurs in the Liphistiomorphae and Mygalomorphae spiders and in the related orders Amblypygi, Schizomida, Thelyphonida.
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| 10. | However, the male pedipalp, chelicera and cephalothorax drawn by Proszynski ( 1984 ), and recently collected specimens indicate otherwise.
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