labial papilla

labial papilla

[′lā·bē·əl pə′pil·ə]
(invertebrate zoology)
Any of the sensory bristles around the mouth of many nematodes; they are jointed projections of the cuticle.
References in periodicals archive ?
Labial papilla E with 5 guard seta-like projections, lateral appendage short, not reaching tip of papilla.
III sensory organ; chaeta d0 on head absent; maxillary palp without sublobal hair; 1 guard chaeta on labial papilla E, chaetae in distal row of tibiotarsi as 7.
(16) Tip of Ant III, showing the special chaetae or sensillae; (17) Tip of Ant IV; (18) Labrum, showing prelabral and labral chaetae, and labral papillae; (19) Terminal chaeta of labial papilla E; (20) Female genital plate; (21) Claw of foreleg; (22) Claw of medial leg; (23) Claw of hind leg.